This paper documents a decreasing trend in the geographical concentration of EU agro-food imports. Decomposing the … their agri-food products from a wider range of suppliers), while geographical concentration increases at the intensive … food alerts at the EU border that had never been exploited before. After coding it into HS8 categories, we regress the …

microfoundations, the welfare consequences of rent seeking can be studied. In particular, I show that competition among rent seekers …

that competition does not guarantee that exchanges choose welfare maximizing trading rules. In some cases, welfare is …

This Paper introduces optimal competition: the best form of competition in an industry that a competition authority can … competition outcome in an industry becomes more competitive as more money is spent in the industry, as the competition authority … puts less weight on producer surplus and more weight on employment. The relation between competition and entry costs is U …

Competition has been modelled in economic literature in a number of ways. What do these different parameterizations of … competition have in common? For instance, it turns out that it is not always the case that a rise in competition reduces price … cost margins, industry wide profits or concentration. All parameterizations of competition, considered here, have two …

We study the effect of entry on costs and competition in the Portuguese mobile telephony industry. We construct and … effort. We show that failure to account for cost reducing effort leads to biased estimates of competition in the industry. We … significant cost reductions, and fostered competition. …

volatility. We posit that competition affects volatility in two distinct and inter-related ways. Market power works as a hedging …

for high-powered incentives. The framework developed in this Paper is applied to non-profits, school competition, and …

and the introduction of competition in many markets. Despite their policy relevance, little work has been done allowing … for a thorough discussion of instruments designed to achieve universal service objectives under competition. We intend to …