中国与G-7的双边服务贸易成本的测度与决定因素——基于改进引力模型的应用

The Measurement and Determinant of the Bilateral Service Trade Costs between China and G-7——Based on Revised Gravity Model

对中国双边服务贸易成本的测度和对其决定因素的探寻可以更好地为服务贸易流动提供解释,对中国服务贸易开放有重要的政策启示。笔者基于改进的引力模型,测度了1999年～2007年间中国与G-7的双边服务贸易成本,并利用面板数据对其进行分解,以此寻求影响中国对外服务贸易成本的因素。结果表明:中国与G-7的双边服务贸易成本总体呈下降趋势,并且在加入WTO后有加速的迹象;空间距离与服务贸易壁垒是双边服务贸易成本存在的主因,与贸易国的人均收入之差及共同的海陆边界有助于降低双边服务贸易成本,共同的贸易集团对于两国服务贸易成本的影响并不明显。

The measurement and determinants of China＇s bilateral service trade cost can be better explained for the service trade flow,which has important policy implications for China＇s service trade opening.With the revised gravity model,this paper measures the bilateral service trade cost between China and G-7 countries during 1999~2007 by analyzing the panel data to seek the influence factors of China＇s Foreign Service trade cost.It is shown that the bilateral service trade cost between China and G-7 is decreasing with a signs of acceleration of such decreasing after China＇s join in the WTO;Space distance and service trade barriers are the main cause of bilateral service trade cost.Per capita income difference and common land and sea borders contributes to reduce the bilateral service trade cost whereas the impact of common trade group on the service trade cost is not obvious.