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THE KOREAN JOURNAL OF FINANCE ASSOCIATION

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수록정보
수록범위 : 1권0호(1988)~32권2호(2019) |수록논문 수 : 484
재무연구
32권2호(2019년 05월) 수록논문
최근 권호 논문
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KCI등재

1거래량의 평균회귀성에 대한 실증연구

저자 : 강민 ( Mhin Kang ) , 채준 ( Joon Chae )

발행기관 : 한국재무학회 간행물 : 재무연구 32권 2호 발행 연도 : 2019 페이지 : pp. 149-186 (38 pages)

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본 연구에서는 한국주식시장을 대상으로 거래량의 평균회귀성을 실증하고, 거래량의 평균회귀성에 영향을 미치는 변수들에 대해 분석하였다. 먼저, 거래량의 시계열에 평균회귀성의 전제조건인 자기상관관계가 존재함을 보이고, Phillips and Perron 검정과 KPSS 검정을 통해 거래량의 평균회귀성을 실증하였다. 이를 통해 한국주식시장에서 나타나는 거래량의 중요 특성을 밝히는 한편, 자기상관관계에 대한 연구에 머물러 있던 거래량의 시계열에 대한 연구영역을 확장했다는 의의가 있다. 또한, Ornstein-Uhlenbeck 모델을 사용하여 평균회귀성의 주요한 속성인 평균회귀속도를 도출하고, 회귀분석을 통해 규모가 적을수록, 주가변동성이 적을수록, 개인투자자의 거래비중이 적을수록, 애널리스트의 이익추정 수가 많을수록 평균회귀속도가 증가함을 보여, 이 변수들이 거래량의 평균회귀성에 중요한 영향을 미치고 있음을 실증하였다. 이러한 결과는 동적거래모델(dynamic trading model) 상의 정보거래자의 정보은닉성 거래(stealth trading)와 행동경제학적 설명인 개인투자자의 주목기반 매수경향(attention based buying tendency)이 거래량의 평균회귀성을 설명할 수 있는 근거가 될 수 있음을 보이고 있다.


This study analyzes the mean reversion of trading volume, which allows us to predict future trading volumes from time-series data. The results have important implications for various related concerns, including the predictability of returns in relation to trading volumes, liquidity, and the use of practical indicators such as the VWAP (volume-weighted average price) and the CGO (capital gains overhang).
We test the trading volumes of the indices, size-portfolios, and individual stocks on the Korean stock market from 1999 to 2017. All of the sample data are obtained from FnDataGuide. First, we test the autocorrelation of the trading volume. The results show that the trading volume has a positive autocorrelation, and that changes in trading volume have negative autocorrelations. Therefore, we confirm that the trading volume process (unlike the return process) does not follow an independent distribution. As mean reversion implies a correlated time-series, the autocorrelation of trading volumes serves as the premise for the mean reversion of trading volumes. Next, we use the Phillips-Perron test (Phillips and Perron, 1988) and the KPSS test (Kwiatkowski, Phillips, Schmidt, and Shin, 1992) to verify the mean reversion property of the trading volume. The results show that the trading volume of the indices, size-portfolios, and 96% of the individual stocks, all have a mean reversion property on the Korean stock market. In addition, we calculate themean-reverting speed for each stock by applying the Ornstein-Uhlenbeck model (Uhlenbeck and Ornstein, 1930) to identify the variables that affect the mean reversion property of the trading volume. We regard the mean-reverting speed as a proxy variable that indicates the relative strength of the mean reversion property across sample stocks. This analysis of the mean-reverting speed enables us to confirm which variables affect the mean reversion of the trading volume. Before the regression analysis, we compare the actual mean-reverting duration of the trading volume with the duration calculated by using the Ornstein-Uhlenbeck model, which is our model for estimating the mean-reverting duration of the trading volume. As the implied error of the model has an acceptable scale, we confirm that our Ornstein-Uhlenbeck model can serve as a reasonable model for trading volume.
The regression results on the mean-reverting speed of each stock shows that the smaller the size, the smaller the stock price volatility. In addition, we find that the smaller the ratio of the individual investors' trading activity and the higher the number of analysts' reports, the higher the mean-reverting speed. This set of findings suggests that the mean reversion of the trading volume can be explained by the presence of stealth trading (Kyle, 1985; Admati and Pfleiderer, 1988; Foster and Viswanathan, 1990; Wang, 1994) and by individual investors' attention-based trading (Barber and Odean, 2008). Heterogeneity between investors generates trading volume. This heterogeneity is resolved by opinion-sharing with trades. However, stealth trading by informed investors delays the incorporation of information, and attention-based trading by individual investors gives the trading volume a positive feedback. Thus, the mean-reverting speed of a stock is slower in trading environments where it is easier to hide information, and where individual investors trade more actively. Additionally, we show that the future trading volume can be estimated from its mean-reversion property. If we know the mean-reverting speed, the mean value, and the standard deviation of the trading volume, we can obtain the expected trading volume by applying the Ornstein-Uhlenbeck model.
This study contributes to the literature in the following four ways. First, and most importantly, it expands research on trading volumes by demonstrating that the volume has a mean reversion property on the Korean stock market. Understanding this property takes us one step beyond making predictions based on the autocorrelation of the trading volume. Second, we find that the future trading volume can be predicted by its mean reversion property. This novel finding helps to expand the knowledge of market dynamics among academics, and it can help practitioners who want to build their positions without causing a serious market impact. Third, we show that the trading volume has a positive autocorrelation in the Korean stock market. Although such autocorrelation of trading volume has been previously studied in the U.S. stock market, it has not been investigated in the Korean stock market. As the scope for applying autocorrelation is wide, we believe that the verification of autocorrelation is also important. Last, we shed light on why the trading volume shows mean-reversion properties. We assess trade sizes, price volatility, the trading activity of individual investors, and the number of analysts' earnings estimates, all of which influence the mean reversion of the trading volume. All of these factors can be partly explained by stealth trading and the attention-based trading of individual investors.

KCI등재

2개인부실채권 상환약정체결 및 완제 행태 분석

저자 : 김형준 ( Hyeongjun Kim ) , 류두진 ( Doojin Ryu ) , 조훈 ( Hoon Cho )

발행기관 : 한국재무학회 간행물 : 재무연구 32권 2호 발행 연도 : 2019 페이지 : pp. 187-219 (33 pages)

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지난 수년간 지속된 가계부채의 누적 증가는 국가 경제의 잠재적 뇌관으로 지목되고 있다. 특히 미국의 기준금리 인상에 따른 국내 금리인상 압력 증가는 가계부채의 부실위험을 증가시킨다. 가계부채의 부실이 국내 경제 전반으로 퍼지지 않으려면, 금융채무 불이행자의 채무조정제도 관련 정책을 평가하고 제도적 개선안을 찾는 노력이 필요하다. 본 연구는 개인부실채권 채무조정에 관한 자료를 연구하여, 연체채무자가 채무조정약정을 체결하고 상환하는 과정을 실증분석하였다. 연구 결과는 다음의 정책적 함의를 지닌다. 첫째, 연체채무자의 채무조정 약정체결확률은 연체기간이 길어질수록 점차 감소한다. 따라서 연체채무가 장기화되기 전에 채무조정제도 편입을 통해 제도권 내에서 관리하며 정상적인 경제활동으로의 조속한 복귀를 지원할 필요가 있다. 둘째, 약정체결자의 완제종결확률은 연체기간이 길어질수록 점차 증가한다. 이는 긴 연체기간으로 인해 높은 감면율이 적용될 뿐만 아니라 실직․질병 등 연체사유가 해소되면서 채무자의 상환능력이 회복되기 때문이다. 따라서 연체채무자의 상환능력 회복을 위해서는 유예기간을 확대하는 방안 등의 검토가 필요할 수 있다. 셋째, 그럼에도 불구하고 연체채무자의 상환능력 회복에는 한계가 있다. 연체기간이 약 10년을 넘어서는 경우 채무조정약정을 체결하더라도 완제종결확률이 감소한다. 이러한 실증분석 결과는 현재 논의되는 장기소액연체자 지원에 대한 간접적 근거가 될 수 있다.


The continuous increase in household debt in Korea over recent years has been widely noted as a potential risk to the country's economy. In particular, the sustained increase in U.S. interest rates have raised the risk of default on household debt. To prevent the spread of household defaults in the economy as a whole, policies for consumer credit recovery should be re-evaluated, and institutional improvements are needed.
This study considers the characteristics of delinquent borrowers and draws policy implications from a quantitative analysis of data from a representative consumer credit recovery program. In particular, we assemble a massive but precise micro-data set to identify the major factors that influence the process of consumer credit recovery. From the findings, we derive a set of substantial policy proposals.
Our analysis classifies delinquent borrowers into three groups as follows: (i) group A, delinquent borrowers who are eligible for the credit recovery program; (ii) group B, delinquent borrowers who have applied to the program and are paying off their debt; and (iii) group C, delinquent borrowers who have completely paid off their debt and are no longer part of the program. Our results have several policy implications. First, the probability that delinquent borrowers will settle their debt by using the credit recovery program gradually decreases as the delinquency period increases. In addition, the probability of delinquent borrowers settling their debt through the credit recovery program is significantly affected by the amount of their debt, their age, and the period of delinquency. The empirical results also show that delinquent borrowers with smaller bonds, lower ages, and shorter delinquency periods have a higher tendency to join the program, and a greater willingness to recover their creditworthiness. A longer delinquency period and a higher age both reduce the probability of starting the program. Therefore, it is necessary to start the credit recovery program and manage it within the system before the delinquency period grows too long.
Second, the probability of completing the program gradually increases as the delinquency period becomes longer. The successful completion of the program is mainly a function of the amount of debt and the debt reduction rate. A smaller bond and a higher debt reduction rate make it easier to repay the debt and complete the program. Notably, we find that borrowers with longer delinquency periods are more likely to pay off their debt completely, and this finding is robust after controlling for the debt reduction rate. This pattern emerges because a longer delinquency period increases the debt reduction rate, and improves the borrower's ability to repay the debt. Over time, the causes of delinquency (e.g., unemployment and illness) tend to be resolved, and the borrower's ability to repay increases. Therefore, it is necessary to consider expanding the grace period (i.e., the period in which a borrower does not need to follow the repayment plan), as this allows borrowers more time to recover their ability to repay the debt.
Third, there is a time limit to the recovery in a borrower's ability to repay. Borrowers with longer delinquency periods are more likely to pay off their debt completely, because the causes of delinquency are more likely to be resolved. However, borrowers who are overdue by more than 10 years are less likely to complete the credit recovery program. Currently, the government is promoting a debt relief program for delinquent borrowers whose total debt is less than KRW10 million, and whose delinquency period is longer than 10 years. Our results provide an empirical basis for this policy. In considering the empirical results regarding the relationship between the delinquency period and the probability of completing the program, we suggest that the program's efficiency can be improved by restricting the number of extensions of the valid period for delinquent debt, restricting the extensions to small amounts of money, and offering such extensions to low-income borrowers only.

KCI등재

3기관투자자의 투자기간과 자사주 매입

저자 : 김태연 ( Taeyeon Kim ) , 김현동 ( Hyun-dong Kim )

발행기관 : 한국재무학회 간행물 : 재무연구 32권 2호 발행 연도 : 2019 페이지 : pp. 221-246 (26 pages)

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본 연구는 한국기업을 대상으로 기관투자자의 투자기간과 자사주 매입 간의 관계에 대해 조사하였다. 2004년부터 2017년까지 유가증권시장에 상장된 기업들을 대상으로 분석한 결과, 기관투자자의 투자기간과 투자 대상 기업의 자사주 매입 사이에 유의한 음(-)의 관계가 발견되었다. 특히, 단기 기관투자자의 지분이 높은 기업일수록 더 많은 자사주를 매입하는 것으로 나타났다. 이러한 결과는 단기 기관투자자들이 장기 기관투자자들과 달리 기업의 성장보다 단기적 주가 상승에 관심이 많고, 주가에 대한 많은 정보를 보유하여 기업의 자사주 매입 후 이어지는 주가 상승으로부터 보다 많은 이익을 취할 수 있기 때문이라 생각된다. 흥미롭게도 기업을 재벌기업과 비재벌기업으로 나누고 기관투자자의 투자기간과 자사주 매입 간의 관계에 대해 조사한 결과, 둘 사이의 유의한 음(-)의 관계는 재벌기업에서만 관찰되었다. 이는 재무적 제약이 적고 지배주주의 지배력이 높은 재벌기업에서 자사주 매입이 더 높은 주가 상승으로 이어지기 때문으로 보인다. 본 연구는 기관 투자자들을 동질적 집단으로 간주하였던 기존 국내 연구들과 달리 기관투자자들의 상이성에 초점을 맞춰 기관투자자들마다 투자 대상 기업의 재무정책, 특히 자사주 매입 정책에 대한 관심이 다를 수 있음을 보였다는 점에서 의의를 갖는다.


In recent decades, share repurchases have greatly increased (Dittmar and Field, 2015; Floyd, Li, and Skinner, 2015; Sul, Kim, and Jang, 2004). Institutional ownership has also grown during this period, and institutional investors have had an increasingly significant effect on corporate decision making (Gugler, Mueller, and Yurtoglu, 2008; Yun and Kim, 2015). Even so, the existing literature has generally maintained that each institutional investor has unique characteristics. In particular, institutional investment horizons can be a notable dimension of heterogeneity among institutional investors (Bushee, 1998; Gaspar, Massa, and Matos, 2005; Chen, Harford, and Li, 2007; Aghion, Van Reenen, and Zingales, 2013). In this paper, we examine the relationship between institutional investment horizons and share repurchases. We hypothesize that firms with higher short-term institutional ownership engage in more share repurchases than those with lower short-term institutional ownership. Our conjecture is based on two considerations.
First, short-term institutional investors are more likely to care more about the capital gains they expect from an increase in a firm's stock price than they care about the firm's long-term value. In financial markets with information asymmetry, share repurchases of overvalued firms benefit the shareholders who sell their shares, but such repurchases harm the investors who hold their shares. Accordingly, firms typically repurchase their stocks only when they are undervalued, and then stock repurchases typically stimulate an increase in stock prices (Lucas and McDonald, 1998). Although stock repurchases reduce the information asymmetrybetween firms and shareholders by providing the market with information on a firm's intrinsic value, these repurchases may not enhance the firm's growth or improve its operations. Given that short-term institutional investors may not remain shareholders of the firm for long, those investors are more likely to be concerned with the short-term capital gains that can result from share repurchases. Long-term institutional investors are more concerned with how share repurchases may affect a firm's long-term value creation.
Second, short-term institutional investors often have more information on a firm's stock prices than long-term institutional investors (Yan and Zhang, 2009). More informed shareholders can make better decisions on a firm's stock trades, and they can gain more profit from selling their shares. Therefore, more informed shareholders prefer share repurchases that can reap greater capital gains (Brenan and Thakor, 1990). Previous studies (Grinblatt and Titman, 1989; Wermers, 2000; Yan and Zhang, 2009) have indicated that short-term institutional investors are better informed about stock prices, and they tend to realize abnormal profits. Therefore, short-term institutional investors are more likely to prefer stock repurchases.
To test our hypothesis, we measure institutional investors' investment horizons with reference to turnover ratios. Following the literature (Gaspar et al., 2005; Attig, Cleary, El Ghoul, and Guedhami, 2013), we define a turnover ratio as the weighted average of the total portfolio's churn rates among a firm's institutional investors. We also use two other proxies for investment horizons, which are measured as the percentages of ownership of a firm held by long- and short-term investors. We define long-term (short-term) investors as those whose turnover ratios are in the bottom (top) tertile. In addition, a firm's stock repurchases are measured as the amounts paid for stock repurchases, divided by the amounts of total payouts (that is, the sums of cash dividends and stock repurchases). Our final sample represents 3,404 Korean firm-year observations from 2004 to 2017.
We find that the investment horizons of institutions are negatively related to share repurchases. In particular, firms that are mainly held by short-term institutional investors tend to make more repurchases. Our findings remain unchanged when we address endogeneity issues subject to measurement error and omitted variable bias. Specifically, our results are robust to using various measures of stock repurchases, and they hold after conducting a propensity score matching procedure and a change regression. Interestingly, we also find that when firms are classified as Chaebol or non-Chaebol firms, the negative association between institutional investment horizons and share repurchases is observed only in the Chaebol firms. Chaebol firms often have fewer financial constraints, due to the presence of internal capital markets. The controlling owners of Chaebol firms also tend to exercise greater control than owners of non-Chaebol firms. These characteristics of Chaebol firms are likely to provide a suitable environment for increased repurchases. Overall, our empirical findings suggest that shorter institutional investment horizons are among the most important factors explaining increased buybacks.
Previous studies have analyzed the effects of institutional investors on corporate policies by regarding institutional investors as an homogeneous group. Relatively few researchers have investigated the heterogeneity of institutional investors. This study focuses on examining the differing investment horizons of institutions, and it makes a contribution to the corporate finance literature by examining the determinants of firms' payout policies. Moreover, we add to the literature on Chaebol firms by showing that firm characteristics appear important for explaining the relationships between institutional investment horizons and stock repurchases.

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4투자자의 사적 정보와 지정가 주문 선호에 대한 연구

저자 : 이교임 ( Kyoim Lee )

발행기관 : 한국재무학회 간행물 : 재무연구 32권 2호 발행 연도 : 2019 페이지 : pp. 247-308 (62 pages)

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본 연구는 단기에 주가에 반영되지 않을 사적 정보를 가진 투자자가 지정가 주문을 선호하는지를 실증적으로 검정한다. 유가증권 시장에서 1999년 1월~2009년 8월에 기관, 개인, 외국인투자자가 보통주를 거래한 모든 내역이 수록된 자료를 이용하여, 1) 주가가 크게 상승(하락)하기 전에 각 투자자의 매수(매도) 중 지정가 주문의 비중이 증가하는지, 그리고 2) 이들의 지정가 주문불균형이 미래 주가 수익을 예측하는지를 검정한다. 기관투자자의 경우, 4주 동안의 큰 주가 상승(하락)에 앞서 매수(매도) 중 지정가 주문의 비중이 증가하고, 지정가 주문불균형이 대형주를 중심으로 4~12주 주가 수익을 강건하게 예측한다. 개인투자자는 주가의 큰 등락 전에 사적 정보와 관련한 지정가 주문 비중의 변동이 없고 전반적으로 거래가 정보에 기반하지 않아 보이나, 지정가 주문불균형이 소형주의 4~52주 수익을 예측한다. 사적 정보는 기관과 개인 투자자 중 일부에 한정되고, 특히 소수의 개인이 소형주의 정보를 가지는 것으로 판단된다. 외국인투자자는 표본기간 동안 사적 정보의 보유의 근거가 약하다. 본 연구는 비교적 덜 활발한 분야인 사적 정보에 기반한 주문 선택에 대한 논의에 기여한다. 또한, 국내 투자자들의 거래의 미래 수익 예측력에 대한 기존 결과들이 엇갈림과 관련해서도 중요한 보완이 된다


The informed investors' order choice problem has been generally under-discussed, although this problem can exert a pervasive influence on trading and asset prices. In the literature, it has been long assumed that informed investors rely solely on market orders. Theoretical modeling of order choice under conditions of information asymmetry has been widely perceived to be complicated so far. Few empirical studies have been done on this subject, and even fewer have considered non-highfrequency data, primarily because detailed order and transaction data are rarely available. This article builds on the implications of several studies, and this article tests the hypothesis that investors with long-term private information prefer limit orders. When investors have information that is unlikely to spread among other market participants in the near future, the execution risk is low. In that case, the investors would wait discreetly for their limit orders to be executed at hopefully favorable prices and avoid influencing the market price, rather than rushing to take trading opportunities at a premium by placing market orders. As investors have information, the risk of adverse selection problem also remains low.
To test this hypothesis, I investigate the trading practices of domestic institutional and individual investors. Compared with individual investors, institutional investors have been widely assumed to be better informed about future stock returns, at least for the intermediate-term of under a year. As institutional investors manage larger funds, they are more likely to spend resources to produce long-lived private information, and are concerned about the possibility of impacting prices. Individual investors are not usually considered to have superior information, but some evidences support their ability to predict future returns. In my simple preliminary analysis, I find that institutional investors are commonly able to predict the future returns for large stocks, and individual investors are often able to predict the future returns for small stocks.
To provide empirical evidence regarding the aforementioned hypothesis, I use a unique dataset that includes every order and transaction of equity shares on the Korean Stock Exchange between January of 1999 and August 2009. I find that institutional investors make significantly more limit orders in purchasing (selling) stocks whose ex-post four-week returns are in the highest (lowest) quintile, and that they also return to use more limit orders after prices start to rise (fall) rapidly along with the general increase in market orders. In addition, according to our Fama-MacBeth (1973) cross-sectional regressions similar to those of Kelley and Tetlock (2013), institutional investors' limit order imbalance positively predicts the following 4- to 12-week returns. In particular, the institutional investors' return predictability on the biggest 30% stocks in particular is significant, both statistically and economically. These predictions do not reverse until 52 weeks later. These findings are robust when the order imbalances of individual and foreign investors are included as additional explanatory variables. The market order imbalances of institutional investors generally do not predict future returns.
Concerning individual investors, no evidence is found that they use more limit orders when purchasing the stocks whose ex-post four-week returns are in the highest quintile. These investors use more limit orders in selling ex-post loser stocks, but the insignificant predictability of their negative limit order imbalances for predict future returns suggests that this increase in limit orders is unrelated to having private information. During the upward (downward) price movements, individual investors only tend to increase their market orders steadily for purchasing (selling) those winner (loser) stocks. Thus, on average, individual investors seem to be no better informed than the market as a whole. However, the limit order imbalances of individual investors strongly predict the 4- to 52-week returns on small stocks, especially when these limit order imbalances are positive. These overall results of individual investors can be compatible if a small number of individual investors do hold superior information on small-cap stocks, whereas it is more difficult for average investors to acquire information on these stocks, due to their deeper information asymmetry. In general, the market order imbalances of individual investors do not predict these stocks' future returns.
In summary, institutional investors prefer limit orders when they trade on the basis of private information on large stocks, and individual investors prefer limit orders when they trade small stocks on the basis of positive private information. Only a small fraction of the institutional investors and a smaller fraction of the individual investors seem to acquire high-quality long-lived information before prices fully converge to the reservation prices. My findings suggest that in some situations, investors can take profits due to having superior information. Such information can remain unrevealed to the public for longer periods than has been previously assumed according to efficient market theory. This article contributes to the discussion of order choice problems under information asymmetry. My findings can also help to reconcile the inconsistencies that domestic institutional and individual investors' predictions on future returns show mixed results.

KCI등재

5재무취약성과 거시경제충격이 운전자본관리에 미치는 영향: 국내 상장기업의 영업활동과 기업간 신용 차입 행태에 대한 실증연구

저자 : 조용준 ( Yong-jun Cho ) , 정병욱 ( Byung-uk Chong )

발행기관 : 한국재무학회 간행물 : 재무연구 32권 2호 발행 연도 : 2019 페이지 : pp. 309-349 (41 pages)

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초록보기

본 연구는 기업의 영업활동과 관련된 단기자금 조달수단으로서 기업간신용 차입 행태를 실증적으로 분석한다. 금융경색, 금융위기 등의 거시경제충격 요인과 재무제약, 재무곤경 등의 개별기업 재무취약성 요인이 기업간신용 차입 비중에 미치는 영향을 실증적으로 검증한다. 본 연구의 초점은 기업간신용 차입 및 여신을 매출액 대비 측정하여 기업의 유동자산 및 유동부채의 관리를 매출액으로 지표되는 영업활동과 연관하여 분석하는 것이며 거시경제충격 및 재무취약성 요인이 운전자본관리에 미치는 영향을 분석하는 것으로 종합된다. 실증결과는 금융경색 및 금융위기 요인은 기업간신용 차입 비중을 증가시키며 기업간신용 차입은 기업의 영업활동에 있어서 거시경제충격에 대응하는 운전자본관리 수단으로서 기능함을 제시한다. 본 연구의 실증결과는 재무취약성 요인들도 매출액 대비 기업간신용 차입 비중을 증가시키며 기업간신용 차입이 기업의 영업활동에 있어서 재무취약성 요인에 대응하는 단기자금 조달수단으로서 기능함을 제시한다. 또한 본 연구의 실증결과에서 금융경색 및 재무취약성 요인의 상호작용항이 매출액 대비 기업간신용 차입 비중에 미치는 정(+)의 영향을 미치는 것으로 추정되었다. 본 연구의 전반적인 추정결과는 금융경색 환경 하에서 재무취약성 요인은 기업간신용 차입 의존도를 증폭시키며 기업의 영업활동 및 매출규모의 유지를 위하여 기업간신용의 차입 비중을 확대하여 운전자본을 관리함을 제시한다.


Trade credits are offered by suppliers in the form of allowances for buyers to postpone their payments. Trade credits are non-market-based bilateral debt contracts between buyers and sellers, and these contracts incur higher costs of debt than market-based short-term financing sources such as bank financing and commercial paper. Trade credit financing is generally assumed to be more expensive than bank financing, as trade credit is commonly requested by credit-constrained borrowing firms. Another prevailing assumption is that reliance on trade credit financing tends to increase with the degree of credit rationing on financially constrained firms following adverse macroeconomic shocks.
In the fields of corporate finance and financial intermediation, the question of how firms choose their financing sources has become increasingly important for researchers. Clearly, different sources involve different kinds of risk, and choices are made under conditions of information asymmetry in financial markets. In line with traditional research in this area, this paperexamines how firms conduct trade credit financing in response to both macroeconomic and microeconomic factors, and it tests the substitutability and complementarity of bank financing and trade credit financing.
The existing literature on trade credit financing suggests two main views on trade credit channels, namely the “substitution view” and the “complementarity view.” The substitution view posits that trade credit is a substitute for market-based, short-term financing sources such as bank revolving lines or commercial paper. Reliance on trade credit is more likely when the borrowing firms are constrained in their access to these market-based, short-term financing sources. Under such constraints, firms commonly turn to substitute sources of financing, such as trade credit. In this sense, trade credit and market-based financing are substitutes, and we can expect that trade credits will be more commonly used by firms under financial distress or in times of economic shocks, e.g., financial crises. The complementarity view holds in situations where the supply of trade credit and the access to bank financing or capital market funding are linked. When financial intermediaries are more effective in screening and monitoring the borrowing firms, financial intermediaries can provide financing directly to firms operating in capital markets. However, when the suppliers are more efficient in screening and monitoring, or in enforcing debt contracts, it may be optimal for these financial intermediaries to offer financing to the suppliers, who then relend to the purchasing firms. Such efficiency may arise if the suppliers have proprietary information about the purchasing firms, if they can threaten to suspend future deliveries, or if their opportunity costs for any repossessed inventory are higher than the costs of financial intermediaries. In some sense, non-financial suppliers act as “agents” for financial intermediaries.
The main question raised in this paper is why financially vulnerable firms rely more on trade credit financing, even when seemingly cheaper sources of financing (such as bank revolving lines and commercial paper) are available in the short-term debt markets. In particular, our paper investigates how financial vulnerabilities and macroeconomic shocks operate in both separate and combined ways to affect firms' choices for trade credit financing.
This paper uses CP spread as a measure of credit crunches in short-term debt markets. In addition, the 2008~2009 global financial crisis is used as a natural event study factor, which represents an example of an extreme macroeconomic shock to both domestic and overseas financial markets. The effects of both CP spreads and macroeconomic shocks on trade credit financing are estimated. The empirical results show that adverse macroeconomic shocks increase trade credit financing, which is measured by accounts payable relative to sales. These results imply that trade credit financing may offset the contraction of bank financing, which can be triggered by adverse macroeconomic shocks and credit crunches in the Korean economy. In other words, trade credit financing can function as a financing instrument that can absorb macroeconomic shocks, thereby serving to maintain business operations and enable the management of working capital.
Our paper also examines the effects of various firm-level financial vulnerabilities on trade credit financing. Following previous studies, we consider financial vulnerability factors, including the Whited-Wu index and the dividend payout ratio, both of which indicate the degrees of financial constraint. We also consider the modified Altman Z score and the default likelihood Indicator, both of which indicate the degree of financial distress. The empirical results show that financial vulnerability factors increase firms' reliance on trade credit financing. Overall, our paper's findings indicate that under conditions of macroeconomics shock, financially vulnerable borrowing firms are inclined to increase their reliance on trade credit financing. This evidence supports the hypothesis that trade credit financing serves as an alternative source of short-term corporate debt financing for financially vulnerable firms that are facing credit crunches. Our results suggest that trade credit financing plays a key role in helping firms to flexibly maintain their business operations and manage working capital under conditions of financial constraint or distress, such as those following macroeconomic shocks. Moreover, this paper provides evidence that the interactive effects of macroeconomic shocks and financial vulnerabilities tend to stimulate trade credit borrowing (i.e., accounts payable relative to sales). This pattern implies that firms are commonly forced into reliance on trade credit financing when adverse macroeconomic circumstances render them financially vulnerable.

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