한국의 대외개방도는 1950년대부터 지속적으로 높아져 2015년도에 이르러서는 100%가 넘 는 수준으로 매우 높은 대외개방도를 나타내고 있다. 한국경제 성장의 발판이 된 수출산업은 약 21%의 수출이 중국시장을 통해 이루어지고 있다. 이러한 무역기조를 반영하여 2015년 12 월20일에 한중 FTA가 발효되었다. 그러나 변화한 중국의 수출산업은 현재 한국의 수출산업 을 위협하고 있다. 따라서 한중무역의 구조변화는 양국무역에 많은 영향을 주고 있다. 본고에 서는 이러한 한중무역간의 변화를 Grubel-Lloyd지수를 산출하여 한중양국의 무역의 무역구 조가 산업내 무역과 산업외 무역 중 어느 쪽에 가까운지 파악하고, 이에 따라 2015년에 발효 된 한중 FTA양허안의 효과를 분석하였다
Korea's external openness has been steadily rising since the 1950s that has reached over 100% in 2015, indicating a very high level of external openness. The export industry was the heart of Korean economic growth and it was accounted for 21% of exports to China. In this situation The Korea-China FTA was signed in 2015, and it entered into force in 2016. The Korean government expects the Korea-China FTA to help Korea's economy. However, there have been many changes in Korea-China trade and the biggest change in Korea-China trade was the change in trade structure. Therefore, in this paper we calculated the GL index of Korea-China trade. The GL index is used to analyze the trade structure of bilateral trade so we analyzed the trade structure of Korea-China trade through GL index. Korea and China started trading in 1992, and at that time, bilateral trade had the form of inter-industry trade, but due to China economic growth and technological growth, Korea-China trade turned into intra-industry trade. In other words, China's export industry is competing with Korea's export industry. This means that Chinese export products and Korean products are competing in the Korean market, while Korean exports products and Chinese products are competing in the Chinese market. This phenomenon will be a big factor in the effect of Korea-China FTA. Therefore, we analyzed the effect of Korea-China FTA through the changes in the trade structure between Korea and China.