정보위험이 자본구조와 자본비용에 어떻게 영향을 주는가?

This paper empirically investigates whether information risk affects the capital structure and cost of capital using sample firms listed in KOSPI market over 1981 to 2020 year. According to the results related to many previous studies, they have found that the information risk in terms of outside information asymmetry increases the leverage level and also the cost of capital as well. These results imply that as the higher firms with the asymmetric information, firstly the more debt issuing and secondly equity issuing when they face financing from the outside. Also the investors require the risk premium associated to the level of information risk and this result is significant statistically in the previous papers. Based on these empirical evidences, we test and could find this consistent result. We find as follows: First, we show the evidence that as outside information asymmetry increases, firms also increase the leverage ratio. Second, we also find the evidence that as the asymmetry information increases, equity financing cost also increases. Third, as the asymmetry information increases, the debt cost increases as well. To test robust result, we use various estimation methods which are regression analysis, fixed effect model and Fama-MacBeth method and we estimate the accrual quality as proxy of information risk. As results, we find the consistent evidence. Finally the evidences in this paper imply that information risk is very important factor influencing the capital structure and capital financing.