This paper investigates optimal trade-related policies for managing import risk arising from invasive species. We find analytical evidence that when a cleaning technology is available for foreign exporters and the optimal level of import inspections is strictly positive, a penalty imposed on...

This article investigates the welfare effects of alternate producer collusion schemes in a context where collusion is authorized in order to cover fixed costs. Using a linear equilibrium displacement model, we find evidence that, when the producer group is allowed to control quota levels, an...

Transportation costs and buyer market power reduce prices and income received by farmers in developing countries. Transportation costs directly affect the marketing margin and also exacerbate market power by limiting farmers’ access to buyers. This article develops a multistage spatial model...

A new empirical industrial organisation approach is used to measure seller market power in the French Comté cheese market, characterised by government-approved supply control. The estimation is performed on quarterly data at the wholesale stage over the period 1985--2005. Three different...