Journal of the Korean Data Analysis Society

Korean Data Analysis Society (한국자료분석학회)
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The Effect of Performance of Non-Interest Operating Sector on Lending Business in Korea

은행의 대출사업에 미치는 비이자부문 영업성과의 영향력

  • Seo, Ji-Yong (Division of Business Administration, Sangmyung University)
  • Received : 2018.11.01
  • Accepted : 2018.12.10
  • Published : 2018.12.31

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Abstract

This study tried to test the result of recent study reporting that there is no the effect of cross-subsidization by applying it to the Korean banks. Besides, the study also did the research to test the previous study that diversification toward non-interest operating sector is related with the motivation of reduction of bank risk. Main results are as follows. First, there is the effect of cross-subsidization between non-interest operating sector and interest one. The higher non-interest profit to total asset is, the lower loan growth and provision to total loan are. Second, the effect of cross-subsidization is related with the fee revenue to operating revenue rather than the fiduciary revenue to operating revenue because high fee revenue results in shrinking the lending business. Third, diversification toward non-interest sector is associated with reducing risk, and risk is not increased when the high performance of non-interest sector is occurred. This evidence is not line with DeYoung, Torna (2013) arguing that non-interest operating activities lead to increasing risk. Finally, Korean banks have to expand the activities in non-interesting sector focusing on boosting fee revenue to increase the effect of cross-subsidization against the possibility of cutting net interest margin.

본 연구는 비이자부문과 이자부문간 수익채산성 대체효과가 존재하지 않는다는 최근 연구결과를 국내 은행을 대상으로 검증하기 위해 시도되었다. 또한, 본 연구는 비이자영업부문으로의 다각화가 은행의 위험감소와 관련성이 있다는 선행연구를 검증하는 작업도 함께 수행하였다. 본 연구를 통해 확인한 주요결과는 다음과 같다. 첫째, 국내 은행들은 비이자영업부문과 이자영업부문간 수익채산성 대체효과를 보여주었다. 총자산대비 비이자이익 비중이 높을수록 대출증가율, 대손충당금 비중이 감소하는 결과를 확인할 수 있었기 때문이다. 둘째, 수익채산성 대체효과는 신탁수익보다는 수수료 수익의 증가와 관련성이 있었다. 수수료 수익비중이 높을수록 대출부문 영업이 축소되는 부(-)의 결과가 확인되었기 때문이다. 셋째, 비이자영업부문으로의 다각화는 은행의 위험감소와 관련이 있으며, 비이자영업부문 성과가 높을수록 위험은 증가하지 않았다. 해당 결과는 비이자영업활동이 위험을 증가시킨다는 DeYoung, Torna(2013)의 주장을 지지하지 않는다. 결론적으로 은행들은 향후 순이자마진 감소에 대비하여 수익채산성 대체효과를 높이기 위해 수수료 수익을 높일 수 있는 비이자영업활동을 적극적으로 영위할 필요가 있다.

Keywords

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