DOES INVESTOR PROTECTION INCREASE FOREIGN DIRECT INVESTMENT? A META‐ANALYSIS
对74项研究中的2107个估计值进行元分析，发现国际投资协定对外国直接投资的影响极小，近乎为零，但存在出版偏倚，且发达国家的外国直接投资对投资者保护更敏感。
Abstract We undertake a meta‐analysis of the effects of international investment agreements for the protection of foreign investors on foreign direct investment using 2107 estimates drawn from 74 studies. Our meta‐analysis finds robust evidence that effect of international investment agreements is so small as to be considered zero. However, our results do not rule out the possibility that the effect of these agreements is, in fact, positive and that current research methods are insufficiently powerful or precise to identify the underlying genuine effect. FDI from developed countries appears to be more responsive to the existence of investment protection, and there is evidence of publication–selection bias in favour of studies that find a positive effect for investor protection.