Numerical simulation exercises to analyze the impacts of potential changes in non-tariff policies commonly use ad valorem equivalent tariff treatment even though estimated impacts using explicit model representation and ad valorem equivalent treatments will differ. The difficulty for modellers...

This paper focuses on the role of "institutions" in the fight against poverty and inequality. Our view of institutions encompasses formal rules designed by polity (including those in the legal and economics sphere such as rules of property rights, contracts and liabilities) as well as informal...