A common approach to measuring price changes is to look at the change of the expenditure needed to purchase a fixed basket of goods. It is well-known that this approach suffers from problems and creates several biases in the measurement of price changes faced by consumers. Substitution and...

Food purchases differ substantially across countries. We use detailed household level data from the US, France and the UK to (i) document these differences; (ii) estimate a demand system for food and nutrients, and (iii) simulate counterfactual choices if households faced prices and nutritional...

This paper examines the welfare effects of intellectual property protection, accounting for firms' optimal responses to legal environments. I examine firms' use of indirect price discrimination in response to U.S. copyright law preventing direct price discrimination. Using data covering VHS and...