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 to...

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...