CAJ | 학술논문

通过对中国服务贸易商品集中度和服务贸易竞争力变化趋势的研究发现，中国服务贸易商品集中度呈先下降、后基本保持平稳的态势，中国服务贸易竞争力呈整体下降趋势：利用协整关系和误差修正模型研究中国服务贸易商品集中度对服务贸易竞争力的影响．从长期来看．服务贸易进出口集中度、进口集中度对竞争力的影响为正，出口集中度对服务贸易竞争力存在负面影响：服务贸易进出口商品集中度、出口商品集中度、进口商品集中度均是服务贸易竞争力的格兰杰原因，服务贸易竞争力不是服务贸易进出口商品集中度、服务贸易出口商品集中度、服务贸易进口商品集中度的格兰杰原因。
통과대중국복무무역상품집중도화복무무역경쟁력변화추세적연구발현，중국복무무역상품집중도정선하강、후기본보지평은적태세，중국복무무역경쟁력정정체하강추세：이용협정관계화오차수정모형연구중국복무무역상품집중도대복무무역경쟁력적영향．종장기래간．복무무역진출구집중도、진구집중도대경쟁력적영향위정，출구집중도대복무무역경쟁력존재부면영향：복무무역진출구상품집중도、출구상품집중도、진구상품집중도균시복무무역경쟁력적격란걸원인，복무무역경쟁력불시복무무역진출구상품집중도、복무무역출구상품집중도、복무무역진구상품집중도적격란걸원인。
This paper analyzes the changing trend of the concentration degree and competitiveness of Chinese service trade. The results show that the trend of the concentration degree is declining first and then remaining stable, and the competitiveness is downward over this period. Using the cointegration test and VECM model, it finds that from a long period, the impact of the concentration degree of Chinese service trade and the concentration degree of service import trade on the competitiveness are both positive, and the impact of the concentration degree of the service export trade on the concentration degree is negative. The Granger causality test shows that the concentration degrees of Chinese service trade, service export trade and service import trade are all the Granger reason of the competitiveness of Chinese service trade, but the competitiveness of Chinese service trade is not the Granger reason of the concentration degrees of Chinese service trade, service export trade and service import trade.