Institutional investors have increased their presence in financial markets (Gompers and Metrick, 2011), securing positions as dominant players by becoming actively involved in firms’ operations. Active institutions influence the board of directors and management, thus bringing about changes in corporate policies, influencing governance, and affecting the quality of financial reporting and corporate disclosure. While some studies have found that institutional investors actively monitor firms’ management and mitigate managerial agency problems (e.g., Kaplan and Minton 1994; Chung, Firth, and Kim 2002), other studies have argued that institutional investors seeking to maximize personal benefits influence firm management, prompting managerial opportunism such as earnings management (e.g., Agrawal and Knoeber, 1996; Black, 1998; Parrino, Siasand, and Starks, 2003). Recent papers have focused on the investment horizons of institutional investors, such that long-term institutional ownership improves corporate governance (Lee and Chung, 2012), exhibits less tax avoidance (Khurana and Moser, 2013), and increases investment (Derrien, Kecskés, and Thesmar, 2012). Firms with large portions of transient institutions are more likely to reduce research and development expenditures (Bushee, 1988) and get lower premiums at acquisitions (Gasperet al., 2005). In Korea, domestic institutional investors exhibit short-term trading behavior and fail to contribute to the increase in earnings quality (Cheon, 2003). Likewise, Kwon (2007) classified institutional investors into four types: financial institutions, security companies, insurance companies, and foreign investors. He found that foreign investors and insurance companies improved earnings quality, whereas other local institutional investors tended to focus on short-term profits and did not contribute to the increase in earnings quality. Research has indicated that short-term investors have less incentive to engage in improving a firm’s long-term performance, but use their informational advantage to enjoy the personal benefits of short-term stock trading (Park and Song, 2014). Thus, the monitoring role played by institutional investors is closely related to their investment behavior. In this paper, we study the effect of the investment horizons of institutional investors on the effectiveness of internal control systems over financial reporting. Specifically, we examine how the investment horizons of institutional investors effect the disclosure of material weaknesses in internal control over financial reporting under Section 404 of the Sarbanes-Oxley ACT of 2002. We measure institutional investors’ portfolio turnover using churn rate, as introduced by Gasper et al. (2005), which measures how frequently an institution buys and sells its stocks. Our measure of a firm’s investment horizon is the weighted average of the total portfolio churn rates of its institutional investors. We find that institutional investor ownership decreases both the frequency and the number of material weaknesses under the SOX 404. However, this positive relationship is weakened as institutional investors’ investment horizon for each firm is short-term. These findings suggest that institutional investors’ influence over the effectiveness of internal control is closely dependent on their investment horizons. Our results contribute to the literature that the role of institutional investors in enhancing internal control systems is closely related to institutions’ investment horizons.

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Since the seminal work of Irving Fisher, the question of how stocks covary with inflation has been extensively examined because inflation risk erodes purchasing power and threatens invetor’s long-term objectives (Ang et al., 2012). Most studies found that nominal stock market returns and inflation are negatively correlated. However, there are some evidence that some non-cyclical industries tend to covary positively with inflation, even though the inflation beta is not significant. In addition, the previous literature has focused on the hedging ability of aggregate stock market indices. Recently, Ang et al. (2012) found that some stocks have the ability to be good inflation hedges, suggesting that an investor seeking to hedge inflation risk would optimally hold this firm-level constructed portfolio rather than a market-weighted index. Therefore, if equity funds construct their portfolios based on individual stocks whose returns covary strongly with inflation, those funds have the potential to provide a better inflation hedge for investors, especially who want to avoid inflation risk. Based on this conjecture, this paper examines the inflation hedging ability of Korean equity funds during the January 2001 to May 2013 period. To measure the inflation hedging ability of individual equity funds, we compute fund-level inflation betas following Bekaert and Wang (2010), by regressing individual fund returns on inflation. This allows us to conduct an ex-post analysis of which funds provided the strongest realized covariation between fund returns and inflation. As Jiang, Yao, and Yu (2007) noted, evidence of timing ability can result simply from “luck.” For instance, even if no funds have timing ability, when there are a large number of them, some will have significant timing measures based on t-statistics, due to random chance (Jiang et al., 2007)and the sampling variation. To consider this problem and identify whether the inflation hedging ability is genuine, we use the cross-sectional luck distribution, estimated using the bootstrap approach, to distinguish between skill and luck (due to sampling variation), as proposed by Kosowski et al. (2006). The advantage of the cross- sectional bootstrap approach is that it allows researchers to obtain a distribution of the inflation betas for all funds; specifically, it does not consider the luck distribution of a particular fund but, rather, considers that of all funds, which allows us to draw a statistical inference of funds in the extreme tails of the cross-sectional distribution (i.e., extreme positive inflation betas). When using the realized and expected inflation, we find that while some Korean equity funds have inflation hedging ability, it is due more to fund managers’ luck (or sampling variation) than skill. Some previous studies have shown that inflation betas are time-varying. To consider this finding, we divide our sample period into two sub-periods ranging from January 2001 to December 2005 and from January 2006 to May 2013, respectively. This sub-period analysis shows that slightly more funds have returns that covary significantly and positively, in the second sub-period than in the first period. However, the significantly positive inflation betas in both periods are due to luck, consistent with those of the whole- period analysis. The bootstrap procedure used by Kosowski et al. (2006) assumed that the residuals from the regression analysis were independently and identically distributed for funds. However, it is possible that the residuals have serial dependence over time or cross-sectional correlations across funds. To evaluate their effect on the bootstrap results for inflation hedging skill, we adopt the sieve and stationary bootstrap approaches. The empirical results for these two approaches do not differ from those of the previous results. Lee and Jeon (2012) found that most Korean equity funds tend to invest in large and growth stocks relative to the KOSPI 200 index, implying that their inflation hedging ability may influence our results. To examine this effect, we divide our sample funds into their investment styles: large/small and value/growth using the Fama-French three-factor model. The results for their investment styles are consistent with those of whole sample funds. Finally, examining the persistence of Korean equity funds’ inflation hedging ability reveals no persistence, indicating that it is difficult for fund investors to construct portfolios of equity funds that are good inflation hedges. Overall, our results indicate that the good inflation hedging abilities of some Korean equity funds are merely the result of luck (or due to sampling variation) rather than fund managers’ skills.

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This study analyzes the efficiency of internal business transactions by comparing the effect of intra-group sale and purchase transactions on business performance, using listed companies that engaged in transactions between sales-related subsidiaries from 2005 to 2010 as subjects. We classify large and medium business groups based on whether a business group is on the mutual investment restriction list, which the Fair Trade Commission announces annually, and compare the transaction behavior difference and efficiency of the transaction effect. To directly review the change in the transaction performance of companies whose affiliations have changed from large to medium business groups due to changes in the large-size, business-group designation criteria, we perform an additional panel analysis using a business-group affiliation change dummy variable (CHANGE). By analyzing business performance using business-group designations that are related to government regulations, we investigate the effectiveness of the current regulatory policies. The main empirical analysis is based on a model that applies an affiliation dummy variable (GROUP). Our analysis compares the transaction efficiency between subsidiaries for each business-group designation. When the variables included in the regression model are considered to be corporate characteristic variables that can interact as factors to determine the size and behavior of the transactions between subsidiaries, it is possible for the internal transaction ratios (SR, PR, SPR) to become endogenous explanatory variables. Hence, we use the results of the two-stage least squares estimation method to control the endogeneity problem. We use the average value of the internal transaction ratio of industry, the number of business group-affiliated subsidiaries, and industry correlation as the instrumental variables for estimating the internal transaction ratio variables. The results are as follows. First, according to the regression analysis of the effect of sale and purchase transactions between subsidiaries on firm performance, the transactions between subsidiaries of a large business group subject to regulations have a significant, positive impact on business performance, and thus support the efficient-transactions hypothesis. In contrast, we find a significant negative correlation between the intra-group transaction ratio and firm performance in unregulated, medium-sized business groups. This evidence is consistent with the tunneling and inefficiency hypothesis, which supposes that large Korean business groups have used transactions with affiliates to illegally transfer owner’s wealth and management rights. Interestingly, we can confirm that the inefficiency of unfair internal transactions is observed in medium business groups rather than in large business groups. This is contrary to common belief and the findings of previous studies on Korean Chaebol firms. Second, according to the results of the analysis of the intra-group transactions effect before and after the point of regulation change based on using a business-group affiliation change dummy variable, the transactions between subsidiaries of a company for which the affiliation has changed from a large business group to an unregulated medium business group have a significant negative impact on firm performance. We interpret this result as follows. The change in affiliation of a regulated business group to a non-regulated business group has a significant negative impact on the effect of transactions between subsidiaries. This study contributes to the literature on business groups by comparing the firm performance between two groups, before and after regulation change. In summary, differences in the efficiency of transactions between subsidiaries are revealed based on their affiliation with a large business group and the change of affiliation to a medium business group. In other words, the efficiency of internal business transactions depends on whether the firm belongs to large business group or not, and the business group’s regulation designations are very important. The findings of this study thus provide the following suggestion for government policies: rather than the ex-ante, uniform method for regulating transactions between subsidiaries based on the large business group designation system, institutional supplementation is needed in the form of an ex-post regulation method based on the expansion of the target range for regulation and judgment of appropriateness. If restriction is uniformly applied to all transactions between subsidiaries based on the large business group designation system, it may constrict even efficient business management activities. Hence, the appropriateness judgment criteria for evaluating the efficiencies of individual transactions between subsidiaries are needed, and rather than the method of regulating ex-ante internal transactions outright, ex-post regulation based on the actual content of individual internal transaction is desirable. It is necessary to adjust a range of regulated firms and to complement monitoring systems for unfair trade practices, based on ex-post evaluations.

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This study examines the voluntary asset sales that took place in Japan from 2000 to 2007. Asset sales increased rapidly after the introduction of a new stock swap and transfer scheme under the Commercial Code Revision in the late 1990s. The unwinding of cross shareholding also forced managers to sell underperforming divisions to maximize shareholder wealth. The study investigates the effect of asset sales announcements and analyzes the motivation for asset sales. In particular, it verifies that information asymmetry influences asset sales. Based on asymmetric information, management can observe the performance of each division, but markets can only observe the total performance of a diversified firm. Hence, markets are likely to underestimate a firm’s value. When firms are undervalued, they not only resort to selling overvalued assets for funds, but they also receive a proper evaluation by providing clearer financial information on undervalued assets. This suggests that the announcement of asset sales is positively related to the stockholder’s wealth and mitigates the information gap. The results are as follows. This study uses 262 voluntary asset sales and a market model to investigate the announcement effects. We find that the announcement of asset sales is significantly positive for abnormal returns of 1.09% per day (-, +1). This suggests that asset sales convey information on corporate fundamental values if the management has access to complete information and attempts to evaluate the wealth of existing shareholders. In addition, we analyze the relationship between the cumulative abnormal return (CAR) and motivation of asset sales. Hite et al. (1987) suggest that management only operates assets for which they have a comparative advantage and sells inefficient assets. This is the so-called efficient hypothesis of asset sales. John and Ofek (1995) report that returns are higher, and the firm experiences increased operating performance, when asset sales lead to a more focused firm. This is called the focus hypothesis. However, Lang et al. (1995) argue that asset sales are used to raise capital and show that announcement returns depend on the use of the proceeds, and positive returns only occur when proceeds are paid out to creditors or shareholders. They call this the financing hypothesis. The main empirical results are not consistent with the above three hypotheses. First, to test the financing hypothesis, the entire sample is classified into two subsamples: the payout sample (54 asset sales) and there investment sample (146 asset sales). The abnormal returns of payout firms are not significantly different than those of reinvestment firms. This result is not consistent with the financing hypothesis, which asserts that an agency problem, through management’s discretion, affects asset sales return. Second, we find that the sample has 118 focused asset sales and 82 non-focused asset sales. The CAR (-1, 1) of focused firms is 0.17%, which is 1.35% lower than that of the other firms, but the difference is not significant. This result also does not support the focus hypothesis. Third, according to the efficient hypothesis, management who inefficiently operate their assets will transfer it to others who may operate it more efficiently. We use Tobin’s q as a proxy variable representing firm efficiency. Tobin’s q for sellers is not lower than that of buyers. In addition, the median CAR of the buyer is significantly negative. These results are not consistent with the hypothesis that the positive effect of asset sales is due to improved efficiency. Fourth, we find that the degree of information asymmetry of asset sales firms is significantly higher than that of matching firms. We identify matching firms using the methodology developed by Barber and Lyon (1996). The degree of information asymmetry significantly decreases after asset sales. This suggests that information asymmetry is related to asset sales. Furthermore, in cross-sectional regressions of CAR (-3, +3), the coefficient of information asymmetry is significantly positive, whereas the coefficients of the debt-pay dummy and focus dummy are non-significantly negative. This also supports the notion that information asymmetry influences asset sales. The results of the other control variables are as follows. Firm size is not related to the announcement effect. Tobin’s q is significantly positive and market return is significantly negative, suggesting that positive market response is due to the availability of information on which firms are undervalued. The coefficients of ROA and leverage are statistically insignificant, which does not support the findings of Hite et al. (1987) and Lang et al. (1995). Finally, we analyze whether asset sales are associated with investments and find that the sensitivity of investments and the proceeds of asset sales are positive and statistically significant. This is consistent with the view that firms improve their market value using asset sales that reduce information asymmetry.

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Analyst reports, which contain views on whether to buy or sell particular stocks for clients, usually include earnings forecasts, long-term growth forecasts, and /or stock recommendations. In general, analysts’ stock recommendations fall into one of five categories: strong buy, buy, hold, sell, or strong sell. Analysts revise their recommendations by upgrading or downgrading them when needed. The recommendation changes are commonly regarded as useful information and lead to changes in stock prices. Investors expect analysts to provide objective, unbiased, and accurate equity research reports based on the best of their knowledge. However, the literature has accumulated evidence that sell-side analysts’ forecasts are tainted and not objective. Sell-side analysts working for investment bank shave pressure to provide optimistic recommendations on firms that can provide business to the investment banks. Analysts working in brokerage houses also have pressure to provide optimistic recommendations to attract trading revenues because upgrades attract more business than downgrades due to restrictions on short selling. Consistent with this conflict of interest, previous literature has found that analysts affiliated with investment banks and brokers produce more optimistic earnings and are more likely to give buy recommendations. In addition, if some investors have access to the contents of upcoming analysts’ reports in advance, then they can take advantage of the superior information contained in those reports. Irvine, Lipson, and Puckett (2007) test the “tipping hypothesis” based on data on initial recommendations and document that brokerage firms provide the contents of affiliated analyst reports to important clients who generate large trading commissions before the information becomes public. We extend this line of research by examining the daily trading data on Korean stock recommendation changes from 2001 to 2010. The advantage of using Korean data is that we can obtain the daily trading volume by investor types for all stocks traded on the Korean Stock Exchange (KSE) and on the Korea Securities Dealers Automated Quotation (KOSDAQ). Our sample consists of 1,708 upgrades and 2,035 downgrades for 223 unique industrial firms. By analyzing investors’ trading data on the recommendation changes of analysts, we examine whether information asymmetry exists among different groups of investors, individuals, domestic buy-side institutions, and foreign investors. Unlike individual investors, institutions frequently communicate with brokerage firms, investment banks, and asset management firms to acquire information, which makes it possible for them to access analysts’ reports. In addition, institutions are more capable of acquiring and processing information than individuals. We thusconjecture that domestic buy-side institutions are better informed than individuals on upcoming recommendation changes. We also investigate whether foreigners have an informational advantage compared to domestic investors on the upcoming recommendation changes. Previous studies provide inconclusive evidence that foreigners perform better than domestic investors in trading stocks. Using Korean data, Choe, Kho, and Stulz (2005) find no evidence that foreign investors perform better than domestic institutions. Our analysis shows that stock prices increase before analysts’ recommendation upgrades, whereas upcoming downgrades do not cause stock prices to decrease before the information release. We then analyze the standardized trade imbalance (STI) to examine the difference in trading activities by individuals, domestic institutions, and foreigners before recommendation changes. Over the period of days -5 to -1, the STI by domestic buy-side institutions is 0.43 before upgrades and -.35 before downgrades, and the STIs are significantly different from zero at the 1% confidence level. However, the STIs by individuals and foreigners before recommendation changes are not statistically different from zero. These results indicate that domestic buy-side institutions buy (sell) stocks in anticipation of an upgrade (downgrade), whereas individual investors and foreign investors do not trade stocks based on information. We also find that trade imbalances by the institutions are positively related to abnormal returns over days 0 to 5 after the announcements of recommendation changes. This evidence is consistent with our argument that domestic buy-side institutions take advantage of their superior information on analyst recommendation changes over the short-term. Our paper adds to the literature by providing evidence of the short-term informational advantage of domestic buy-side institutions over other investors on analysts’ recommendation changes based on high-frequency data from Korea. The evidence shows that domestic institutions predict the direction of analysts’ recommendation changes and reflect this information in their stock trading, which is indirectly consistent with Irvine, Lipson, and Puckett’s (2007) finding. We also contribute to the growing literature on foreign investors’ trading in emerging markets. We find that foreign institution trading is not characteristic of analysts’ recommendation changes and does not predict stock returns. This shows that foreign institutions do not have an informational advantage compared to local institutions on specific events.

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It is generally observed that firms maintain relationships with multiple banks. Although most studies investigating the phenomenon of multiple banking relationships assume more or less equal borrowing weights among the banks, in practice creditor concentration or asymmetry in borrowing occurs, by which we mean that a firm tends to concentrate its borrowing on one main bank and to fill the remaining loan necessity from other arm’s-length lenders. A firm can benefit from establishing a close, long-term relationship with a single bank. For example, studies report evidence that a close relationship improves accessibility to funds and reduces the cost of capital and collateral requirements (Petersen and Rajan, 1994; Berger and Udell, 1995). However, the downside of a close relationship with a single bank is the tendency that a firm may find itself in a disadvantageous position for loan bargaining with the bank, which has acquired monopolistic information concerning the firm’s true credit worthiness. This is called the‘hold-up problem’, which can be a significant constraint, at least for informationally-opaque firms. According to von Thadden (1992), multiple banking relationships may be a solution to the hold-up problem because they create competition among banks, and thus prevent one bank from extracting the monopolistic rent when offering the loan. Multiple banking relationships are reported to reduce bankruptcy probability and the costs resulting from actual bankruptcy, and thus limit a firm’s potential financial distress. Finally, multiple relationships may reduce a firm’s liquidity problems by spreading the risks of liquidity problem of banks themselves. However, the negotiations for loan renewals are more complicated for multiple banking relationships, and when a firm fails and is liquidated, the liquidating value of the firm may be reduced due to the possible failure of coordination among banks (Bolton and Scharfstein, 1996). Considering the above discussion, we assert that creditor concentration (or asymmetric borrowing) with multiple banking relationships allows a firm to overcome the hold-up problem, as well as the possible failure in coordination among many banks. In other words, creditor concentration is a strategic solution for a firm to strike a balance between a single long-term relationship and multiple bank relationships. This paper investigates the influence of variables related to firm, bank, and market characteristics on the degree of creditor concentration in the Korean bank loan market. We use a data set from firms registered on the KISVALUE system of the NICE Information Service from 2006 to 2011. We use a Heckman selection model, and three proxies for measuring the degree of creditor concentration are included in the analysis: the Herfindahl-Hirschman Index (HHI), the largest financing share (CR1), and the Share of Inequality Index (SII). In the first stage of analysis, we estimate a probit for the probability of multiple banking relationships. In the second stage, we estimate the determinants of the degree of concentration, which is conditional on borrowing from multiple lenders. In this study, we find evidence of stronger creditor concentration for firms with more opaque information, more liquidation value of assets, and lower leverage. In addition, creditor concentration intensifies when a firm is more profitable and less risky. Regarding main banks’characteristics, we find that variables, such as bank size, capital adequacy, and bank ROA, do not significant explain creditor concentration. However, the number of employees to total loans, which can be viewed as a proxy for monitoring costs, is negatively related to creditor concentration. Market conditions are found to influence creditor concentration: there is evidence of stronger creditor concentration during boom times, which seems to be related to the tendency of firms to disperse loans to avoid the liquidity problem during recessions. In addition, a weaker creditor concentration is found in more competitive banking environments, during which banks offer better loan conditions, resulting in more dispersed loans among banks. We divide the sample into SMEs and large firms to examine asymmetric bank borrowing patterns. We find that SMEs display highly concentrated borrowing for the firms with more opaque information, higher liquidation value of assets, lower leverage, more profitable business, and better credit rating. These results are similar to those from the previous analysis of the full sample. However, the relations are weak for large firms, which have weak incentives to make strategic decisions on borrowing allocations because they have various alternative financing sources instead of bank loans, such as issuing stocks or bonds. Next, we analyze whether there is any difference in firms’ borrowing behavior during the financial crisis. The impact of firm and market characteristics on the degree of concentration in borrowing during the financial crisis is weaker than that during the normal period. We conjecture that the firms' strategic decisions are limited by the banks because of their strict lending attitude during the financial crisis. Taken together, these results indicate that creditor concentration is attributed to firms' strategic decisions on balancing the holdup problem of relationship lending with the coordination failure of multiple lending. In particular, SMEs behave more strategically relative to large firms. In this way, creditor concentration allows the borrower to retain some of the benefits of long-term relationship lending as well as to enjoy the insurance effect against liquidity risks originating from the relationship lender.

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We investigate the term structures of corporate credit default swap (CDS) spreads in the Korean market based on Pan and Singleton’s (2008) model. To this end, we first consider an algorithm of numerical methods to calculate the theoretical price of CDSs. Specifically, we consider the finite difference method (FDM) and Monte Carlo simulation, and then, we examine the time efficiency and accuracy of the FDM. Monte Carlo simulation might be an accurate way to calculate the model price but it is time-consuming and not appropriate for estimating the term structure in our empirical study. In contrast, our analysis shows that the FDM meets our empirical goal in terms of error and speed. In particular, we use the Crank-Nicholson FDM with a 120×120 grid in our empirical analysis, as it performs relatively well in terms of speed and accuracy. Next, by employing the suggested FDM, we estimate the default probability implicit in the term structure of the CDS spreads for 19 domestic firms over the sample period from 2006 to 2012. We use the ML estimation for our econometric framework, and we estimate the 1-year, 3-year, and 5-year CDS spreads by assuming that the spread of CDSs maturing in three years is observed without error. Our estimation reveals that investors require a significant amount of premiums for bearing the risk of future variation in intensity, defined as the distress risk premium (DRP), when they invest in CDSs. We verify the argument in several ways. First, the ML estimates based on the Q-measure are very different from those based on the P-measure. The ML estimates imply that investors view the intensity dynamics more negatively under the Q-measure than under the P-measure. This result in the Korean corporate CDS market supports the finding of Pan and Singleton (2008) in two emerging sovereign markets. To take a deeper look at the significant difference between the Q- and P-dynamics of intensity, we next compute and examine the default probabilities within five years with the estimated parameters and implied intensity under both the Q- and P-measures. The results show that the Q-probability of default is much higher than its P-counterpart, implying that investors require premiums by adding more probability on real default probability. Finally, we directly calculate the amount of DRP to see how much it accounts for CDS spreads. In doing so, we follow the methodology first suggested by Pan and Singleton (2008) and then employed by Longstaff, Pan, Pedersen, and Singleton (2011) and Díaz, Groba, Lafuente, and Serrano (2013). There are two steps involved in obtaining the DRP. We first calculate the “pseudo- CDS” spread, denoted CDSP using expectations under the P-measure instead of the Q-measure to evaluate the model’s spread. Then, the DRP is obtained from the difference between the market CDS spread and pseudo-CDS spread. The results show that, on the average, the DRP accounts for 42% of the CDS spreads observed in the market. We also find that the DRP varies over time as the economy state changes, and particularly, it soars during the recent financial crisis. To explain our empirical finding that the DRP accounts for a substantial portion of the CDS spread and varies over time, we further investigate what determines the DRP and what drives it to change. To this end, we analyze the principal components of the cross-section of the DRPs. Our investigation shows that the first principal component explains about 97% or more of DRP variation, which implies that Korean companies’ DRPs are associated with investors’ appetites for the market-wide risk. To find what drives the first principal component, we regress the first principal component on a couple of domestic and global financial variables, which serve as proxies for the market risk premium. Specifically, the Volatility Index (VIX) is used as a proxy for a global variable of risk premium, and equity market risk premium, term premium, credit premium, and sovereign distress risk premium are examined as proxies for domestic risk premiums. The result shows that the VIX is statistically significant and has a striking power to explain the time-variation of the first principal component of corporate DRP. Among the domestic variables, equity market risk premium, term premium, and credit premium are statistically significant. However, sovereign distress risk premium (DRP implied in the Korean sovereign CDS spread) subsumes the explanatory power of the other domestic variables when added to the multiple regression. This finding indicates that sovereign DRP is the most important determinant of the co-movement of corporate distress risk premiums among the domestic variables. To control the endogeneity problem, the sovereign distress risk premium is orthogonalized to all other premiums, including VIX, the equity market risk premium, the term premium, and the credit premium. We then regress the first principal component of corporate DRPs on the orthogonalized sovereign DRP. This experiment shows that the orthogonalized sovereign DRP is statistically significant and explains the first principal component of corporate DRPs. This finding implies that sovereign DRP has additional information that is not contained in other risk premium proxies.

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We estimate a two-factor structural mortgage valuation model using data on pool-level termination rates for fixed-rate mortgage loans issued by the Korea Housing Finance Corporation (KHFC) between 2004 and 2008. Our model is a modified version of that proposed by Downing, Stanton, and Wallace (DSW, 2005), in which borrowers rationally decide when to prepay and default in response to changes in house prices as well as interest rates. DSW (2005) find that incorporating house price movements into the model significantly improves its ability to match historical prepayment data over Stanton’s (1995) one-factor (interest rate only) model. In DSW (2005), house price changes are modeled to affect borrowers’ termination behavior only when prices decline by increasing the value of default option, but this particular specification does not bode well for our Korean sample period, during which house prices did not experience substantial or sharp declines. Consequently, we modify DSW’s (2005) two-factor model so that house price movements influence termination behavior when prices increase as well as when prices decline. In contrast to the structural model used in this paper, previous empirical research on mortgage prepayment in Korea has mostly used statistical models, in which termination behavior is modeled as a function of a set of exogenous variables such as interest rates and house prices that represent the factors affecting prepayment and default. While such statistical approach may produce estimated prepayment rates that are closer to the historical data, its out-of-sample forecasting power is likely to be low, and the model is not suitable for pricing mortgage-backed securities. The structural approach taken in this study, on the other hand, models prepayment and default as a rational borrower’s optimal responses to the changes in interest rates and house prices that represent the model’s state variables. Such structural models should perform better out of sample than statistical models, and they can be used in the valuation of mortgage-backed securities. The mortgage prepayment data used in this study are from 34 pools of fixed-rate mortgage loans (called Bogeumjari loans) issued by the KHFC. The sample period is from June 2004 to December 2010, and the prepayment rates at the pool-level, as published monthly by the KHFC, are used. The empirical results show that both interest rates and house price changes significantly affect prepayment rates. In particular, house prices and prepayment rates have a positive association, consistent with Park and Bang (2011) and Choi and Kim (2011), who use statistical models. In addition, incorporating house price movements into the model improves its performance in matching historical prepayment rates, compared to the model in which only interest rate movements are considered. The results of Davidson and MacKinnon’s (1981) J-test selecting between non-nested models show that the two-factor specification that includes house prices and interest rates is better for estimating prepayment rates than the one-factor (interest rate) specification. Moreover, we find that the two-factor model produces prepayment forecasts that are closer to the historical data than the one-factor model in an out-of-sample test. In a structural model, mortgage terminations (prepayment or default) are the result of borrowers’ optimizing behavior, and house price movements can affect the borrowers’ termination behavior as follows. When house prices fall, the value of the default option implicitly held by the borrower increases. And the movements in the value of the default option significantly affect the value of the borrower’s prepayment option and therefore, the likelihood of prepayment. However, we find that prepayment rates decrease with declining house prices. The house prices in Korea experienced some declines during our sample period, but not by any substantial degree. Our finding of lower prepayment rates in times of declining house prices is similar to Mattey and Wallace (2001), who find that weak house prices tend to depress refinancing and prepayments. When house prices increase, so does the collateral value of the houses and the value of the borrower’s equity, which influences the likelihood of prepayment if, for example, the borrower wants to cash out some of the increase in equity. This argument is consistent with the higher prepayment rates during times of increasing house prices found in this paper. More specifically, the period of increasing house prices in our sample is from late 2006 to early 2007, which coincides with rising interest rates. Despite the rising interest rates and penalties for prepayment, prepayment rates during that period increased in close association with rising house prices, suggesting that both interest rates and changes in house prices significantly affect mortgage prepayment rates in Korea.

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Given the numerous studies showing that firm size and book-to-market (BM) ratio are significant variables in explaining the cross-section of equity returns, size and BM effects have become the most notorious anomalies in asset pricing. Chan, Chen, and Hsieh (1985) and Chan and Chen (1991) argue that a default factor explains much of the size effect, and Fama and French (1992, 1993) show that the BM effect may be due to firms’ financial distress risks. As small firms with high BM ratios are likely to suffer from financial distress, the positive relationship between financial distress risk and equity returns may provide a rational risk-based explanation for size and BM effects. However, much of the research indicates that financially distressed stocks earn abnormally lower returns. In this study, we investigate the relationship between financial distress risk, proxied by corporate bond credit ratings, and equity returns in the Korean stock market. Dichev (1998) examines the relationship between bankruptcy risk and subsequent equity returns and finds that higher distress risk is not rewarded by higher returns. The result appears to be inconsistent with a distress factor explanation of size and BM effects. Griffin and Lemmon (2002) explore the relationship between BM ratio, distress risk, and stock returns, and document that stock returns are lower for firms with low BM ratios and high distress risk. Their study is consistent with the “overreaction hypothesis” associated with the BM effect, and the “underreaction hypothesis” for the distress effect, implying that the BM effect is not likely to be explained by the distress risk factor. Vassalou and Xing (2004) argue that firms with higher default likelihood indicators earn higher returns. They present their analysis as a risk-based explanation of the BM effect. However, Da and Gao (2010) show that their results are driven by penny stocks and first-month reversals. Campbell, Hilscher, and Szilagyi (2008), Garlappi, Shu, and Yan (2008), and Da and Gao (2010) also confirm the negative relationship between distress risk and equity returns. The finding that stocks with high distress risk are not compensated by high returns in the stock market suggests an anomaly called “the financial distress anomaly” or “the financial distress risk puzzle.” There are several ways to measure a firm’s default risk to examine the relationship between distress risk and stock returns. First, a logit model can be used to measure a firm’s distress risk (Ohlson, 1980; Shumway, 2001; Chava and Jarrow, 2004). Griffin and Lemmon (2002), Campbell et al. (2008), and Chava and Purnanandam (2010) adopt the hazard rate estimation methodology. The second approach is based on Merton’s (1974) call option pricing model. Vassalou and Xing (2004) and Kim and Park (2010) use the call option approach to measure a firm’s distress risk. The third measure is the credit ratings announced by credit rating agencies. Avramov, Chodia, Jostova, and Philipov (2009) investigate the relationship between the credit ratings provided by Standard & Poor's and stock returns. In this study, we use credit ratings to measure firms’ distress risk. The empirical results are summarized as follows. First, as credit ratings deteriorate, the average excess returns on the credit rating-sorted quintile portfolios decrease. The average monthly excess returns on the best (worst) rating quintile are 1.187% (-1.789%). The Capital Asset Pricing Model, Fama-French three-factor, and Carhart four-factor alphas for the credit rating quintiles also decline with the credit ratings. The return on the long-short portfolio holding stocks to the best rating quintile and shorting stocks to the worst rating quintile is significantly negative (-2.976%). These relationships hold after controlling for firm size, BM ratio, and momentum. Second, we run Fama-MacBeth regressions to examine the relationship between credit ratings and the cross-section of equity returns, and document that the coefficient on the credit rating variable is significantly negative. This finding implies that the credit rating is a significant factor in determining the cross-section of stock returns. For robustness checks, we confirm the negative relationship between distress risk and equity returns after removing downgraded firms and penny stocks from the sample. Finally, we report that market betas and loadings on the HML and SMB factors do not decrease as credit ratings decline, implying that a rational risk-based explanation is unlikely to account for abnormally low returns on stocks with bad credit ratings. Our empirical results do not support the conjecture that distress risk may be behind size and BM effects, due to evidence that distress risk is negatively related to equity returns. Kim and Park (2011) argue that default risk is positively related to stock returns in the Korean stock market. This study challenges them based on the “financial distress anomaly” in the Korean stock market.

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It is well known that venture capitals perform the certification role that reduces the underpricing of IPO firms by alleviating the information asymmetry between insiders and public investors. However, previous Korean studies suggest that the certification role played by Korean venture capitals is not supported—in contrast to the findings of foreign studies. It is also known that venture capitals perform the management support role that accommodates the growth of venture-backed firms and enhances the value of their portfolio companies—a direction explored by few in Korea. In this study, we analyze the short- and long-term performance of IPO firms and the certification and management support roles of venture capitals in a sample of 263 venture-backed IPOs and 213 non-venture-backed IPOs in the Kosdaq market from 2002 to 2012. Specifically, abnormal returns (AR) or cumulative abnormal returns (CAR) can be affected by the early sale of venture capitals’ equity stakes after IPO, so we test their roles by dividing venture-backed IPO firms into two groups: one in which equity shares are sold early and the other in which they are not sold by venture capitals after IPO. The results of previous domestic studies on these issues are not reliable due to a limited data sample problem, and the restrictions inherent in not considering important changes such as the determination method of first day opening price and the lock-up period in Korea. As early sales of venture capitals’ equity stakes can negatively affect the CAR of venture-backed IPOs, and the certification and management support roles played by venture capitals, we divide venture capitals into two groups based on whether they sell their equity stakes early or not. We then test for differences in the roles between the two groups. We find that Korean venture capitals perform the certification role after controlling the variables affecting the short-term performance of IPO firms and that the role strengthens as their equity stakes in IPO firms increase, based on the regression results for first day AR and one month CAR. However, the certification role played by venture capitals is not observed among venture-backed IPO firms whose equity stakes are sold early by venture capitals after the IPO. To analyze the effect that the equity sale of Korean venture capitals has on their certification role further, we divide venture-backed IPO firms into three groups: firms in which equity shares are sold by venture capitals immediately after IPO, those in which equity shares are sold by venture capitals within a month from the second day after IPO, and those in which equity shares are not sold at all by venture capitals within a month after IPO. The regression results show that for the second group, the certification role cannot be found at the 5% significance level and for the other groups, the certification role is not statistically significant. Our analysis of the regression results on three-year buy-and-hold average returns (BAHRs) show that Korean venture capitals do not perform the management support role after controlling the variables affecting the long-term performance of IPO firms. The long-term performance of venture-backed IPO firms decreases as the equity stakes of venture capitals increase. We also test whether the early equity sales of venture capitals prompt the underperformance of venture-backed IPO firms by dividing them into three groups again. The regression results show that as venture capitals sell more their equity shares of venture-backed IPO firms immediately or within a month from the second day after IPO—their BHARs decrease. In contrast, for venture-backed IPO firms in which equity shares are not sold by venture capitals, the BHARs increase as expected, although not with statistical significance. The results suggest that it is very difficult to anticipate the management support role of Korean venture capitals because they sell their equity stakes early (137 out of 263 portfolio companies). This implies that Korean venture capitals are trying to exit as early as possible through the IPOs of their portfolio companies instead of accommodating long-term, win-win growth. Korean President Park Geun-hye’s new government is concentrating its efforts on nurturing innovative small and medium-sized companies under the slogan, “Creative Economy.” Hence, the role of venture capitals as a main financing source and value creator for venture firms is more crucial than it has ever been. However, as this study shows, if the management support role is not adequately performed, venture capitals’ involvement will be limited to providing funding assistance. Therefore, more research on how to develop the management support role played by Korean venture capitals is needed for “Creative Economy” to be successful. The myth that the long-term performance of venture-backed IPO firms is worse than that of non-venture-backed IPO firms in Korea must be investigated further.

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