코스닥시장 기업의 다각화 효과

This study analyzes the effects of diversification from 2000 to 2019 on non-financial companies listed on the KOSDAQ. The results of the diversification effect analysis revealed that there was an unrelated diversification premium in the period before 2010; however, there was no significant relationship between diversification and corporate value after 2011. An analysis of the relationship between company characteristic variables and diversification showed that despite the rapid sales growth of companies listed on the KOSDAQ, sales growth was unrelated to diversification effect. However, the correlation between diversification and the controlling shareholder equity ratio appeared to be negative, indicating that agency costs can harm enterprise value in the process of diversification. These empirical analysis results support the inference that KOSDAQ companies are unlikely to increase corporate value through diversification. In particular, the relationship between governance structure and diversification effect suggests that a comprehensive review is necessary to maximize corporate value when managers make decisions related to diversification. This study confirms that the diversification effects of KOSDAQ market companies differ from those of KOSPI market companies, thereby confirming the need for analysis to understand the diversification characteristics of KOSDAQ market companies.