Ineffective institutions increase transaction costs and reduce trade. This paper shows that differences in the effectiveness of institutions offer an explanation for the tendency of OECD countries to trade disproportionately with each other, and with non-OECD countries.

This paper studies the effect of institutions on trade flows, using a gravity modelapproach. We start from a standard gravity equation that incorporates geographical proximity,language, trade policy and common history. These factors reflect the costs of trade acrossgeographical and cultural...