To what extent has Sub-Saharan Africa’s slow economic growth over the past five decades been due to price and trade policies that discouraged production of agricultural relative to non-agricultural tradables? This paper uses a new set of estimates of policy induced distortions to relative...

The claim by global trade modelers that the potential contribution to global economic welfare of removing agricultural subsidies is less than one-tenth of that from removing agricultural tariffs puzzles many observers. To help explain that result, this paper first compares the OECD and...

A global economy-wide model (GTAP) is used to go beyond estimating how GM crop variety adoption affects adopting and non-adopting economies, with or without policy responses to this technology, by indicating effects also on real incomes of farmers. The results suggest the EU moratorium on...