Does corruption grease or sand the wheels of economic growth? This paper uses meta-analysis techniques to systematically evaluate the evidence addressing this question. It uses a data set comprising 460 estimates of the effect of corruption on growth from 41 empirical studies. The main factors...

In 2005 China provided duty-free access to 190 items from 25 least developed sub-Saharan African (SSA) countries. Three years later duty-free access was extended to 454 items from 31 SSA LDCs. We find no evidence that China's preferential market access program for the least developed sub-Saharan...