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Further Evidence on the Existence of an Inter- and Intra-Industry Optimal Capital Structure for the KOSPI-listed Firms in the Korean Capital Market

국내 유가증권시장 상장기업들의 산업간 그리고 산업내의 최적자본구조의 존재에 대한 추가적인 실증 분석

  • Kim, Hanjoon (Division of Business Administration, Hoseo University)
  • 김한준 (호서대학교 사회과학대학 경영학부)
  • Received : 2017.02.20
  • Accepted : 2017.06.09
  • Published : 2017.06.30

Abstract

This study investigated empirically one of the controversial subjects in modern finance, in that there is an optimal level of capital structure for KOSPI-listed firms in the Korean capital market. Given the major theories on the capital structure, such as Myers' pecking order, trade-off, and agency cost ones, this study applied an analysis of covariance models in parametric and non-parametric statistical methods. In particular, two covariates to control for the possible effects of trade-off and agency cost, were employed separately in each corresponding model, while the other proxy for pecking order rationale was adopted in previous research [1] to conduct inter- and intra-industry analyses. Based on the outcomes obtained from the study, it was demonstrated empirically that there are optimal capital structures for firms in the sample industries at the inter-industry level, whereas statistical differences indicating non-existence of an optimal point, were revealed within the industry. Accordingly, these findings suggest a new vision to potential investors that firms in the domestic market may have financial opportunities to increase their value by gradually adjusting the leverage ratios in terms of the intra-industry perspective.

본 논문은 재무관리 이론에서 현재까지 논의가 지속되고 있는 국내 유가증권시장 상장기업들의 최적자본구조 존재여부에 대한 실증론적 연구이다. 최적자본구조에 대한 주요 이론적 논리인 자금조달이론, 상충이론, 그리고 대리인 이론 등을 전제로, 모수적 그리고 비모수적 방법을 활용한 공분산모형의 분석을 통하여 표본기업들의 최적자본구조 존재 여부를 검정하였다. 구체적으로는, 상충이론과 대리인비용이론과 관련된 통제변수들이 해당모형에서 각각 활용되었으며, 이는 최적자본구조 존재를 위한 산업 간 그리고 산업 내 분석 자금조달이론 통제변수를 활용한 기존의 연구와도 대비될 수 있다. 연구결과 관련, 표본산업을 활용한 산업들 간 분석에서는 최적자본조가 존재하는 것으로 실증적으로 검정된 반면, 산업 내 분석에서는 해당 기업들 간의 통계적인 측면에서 최적자본구조가 존재하지 않는 것으로 나타났다. 이와 부합하여, 본 연구에서 도출된 결과가 잠재적인 투자가들의 측면에서 의미할 수 있는 바는, 향후 국내 기업들이 해당 산업 내의 최적부채비율에 점진적으로 접근할 경우, 기업가치 증대를 위한 재무적 기회가 상존한다는 것이다.

Keywords

References

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