Korea Trade Review (무역학회지)

Korea Trade Research Association (한국무역학회)
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A Study on the Dynamic Correlation between the Korean ETS Market, Energy Market and Stock Market

한국 ETS시장, 에너지시장 및 주식시장 간의 동태적 상관관계에 관한 연구

  • 양국동 (동국대학교 국제통상학과) ;
  • 이은화 (동국대학교 국제통상학과)
  • Received : 2023.07.30
  • Accepted : 2023.08.20
  • Published : 2023.08.31
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Abstract

This paper analyzed the dynamic conditional correlation between the Korean ETS market, energy market and stock market. This paper conducted an empirical analysis using daily data of Korea's carbon credit trading price, WTI crude oil futures price, and KOSPI index from February 2, 2015 to December 30, 2021. First, the volatility of the three markets was analyzed using the GARCH model, and then the dynamic conditional correlations between the three markets were studied using the bivariate DCC-GARCH model. The research results are as follows. First, it was found that the Korean ETS market has a higher rate of return and higher investment risk than the stock market. Second, the yield volatility of the Korean ETS market was found to be most affected by external shocks and least affected by the volatility information of the market itself. Third, the correlation between the Korean ETS market and the stock market was stronger than that of the WTI crude oil futures market. This paper analyzed the correlation between the Korean ETS market, energy market, and stock market and confirmed that the level of financialization in the Korean ETS market is quite low.

본 논문은 한국 ETS시장, 에너지시장 및 주식시장 간의 동태적 조건부 상관관계를 분석하였다. 본 논문은 2015년 2월 2일부터 2021년 12월 30일까지의 한국 탄소배출권 거래가격, WTI원유 선물가격, 코스피지수의 일별 자료를 이용하여 실증분석하였다. 우선, GARCH 모형을 사용하여 세 시장의 변동성에 대해 분석한 후, 이변량 DCC-GARCH 모형을 사용하여 세 시장 간의 동태적 조건부 상관관계를 연구하였다. 연구결과는 다음과 같다. 첫째, 한국의 ETS시장이 주식시장보다 투자 수익률과 투자 위험도가 높은 것으로 나타났다. 둘째, 한국 ETS시장의 수익률 변동성이 외부 충격의 영향을 가장 많이 받고, 시장 자체의 변동성 정보로부터 받는 영향이 가장 작은 것으로 나타났다. 셋째, 한국 ETS시장이 WTI원유 선물시장보다 주식시장과의 상관관계의 지속성이 더 강한 것으로 나타났다. 본 논문은 한국 ETS시장, 에너지시장 및 주식시장 간의 상관관계를 분석하여 한국 ETS시장의 금융화 수준이 상당히 낮은 것을 확인하였다.

Keywords

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