“一带一路”沿线国家市场需求和发展潜力巨大,提升其投资便利化水平对于我国扩大对沿线国家直接投资规模和提升投资质量意义重大。本文基于沿线国家的特点,选取基础设施、制度环境、金融市场、劳动力市场4项一级指标和20项二级指标系统地构建投资便利化水平测度体系,并运用熵值法测度“一带一路”沿线国家2014年—2018年的投资便利化水平,发现沿线国家投资便利化水平呈逐年上升态势,但差异大,区域不平衡性显著,且投资便利化水平与经济发达程度呈正相关关系。在此基础上,结合当前中国对沿线国家开展直接投资所面临的挑战,提出中国与沿线各国应加强合作,共同推进基础设施建设,维护透明高效的制度环境,深化双边金融合作,积极发展本国劳动力市场等对策建议。

Countries along the "Belt and Road" have huge market demand and development potential, and improving their investment facilitation level is of great significance for China to expand the scale and quality of direct investment to countries along the route. Based on the characteristics of countries along the route, 4 primary indicators of infrastructure, institutional environment, financial market, labor market and 20 secondary indicators are selected to construct a set of investment facilitation level measurement system, using entropy method to measure the investment facilitation level of countries along the "Belt and Road" from 2014 to 2018, the results show that there is a big difference in the investment facilitation level of countries along the route but the overall trend is increasing year by year, and the regional imbalance is prominent, and the investment facilitation level is positively correlated with economic development. On this basis, combined with the current challenges faced by China in direct investment in countries along the route, it is suggested that China and the countries along the route should strengthen cooperation, jointly promote infrastructure construction, maintain a transparent and efficient institutional environment, deepen bilateral financial cooperation, and actively develop domestic labor market.