Rules of origin offer preferred market access for final goods whose inputs originate mostly within a free trade agreement. Governments often champion such rules for boosting investment. We use a property-rights framework to study when this motivation is justifiable. The rule does not bind for...

Governments increasingly use changes in tax rules to combat evasion. We develop a general approach to point-identify tax compliance along with supply and demand elasticities; identification requires data on prices and quantities before and after changes in tax enforcement and a demand or supply...