Much of the analysis of market access issues in the Doha Round negotiations involves clearly defined instruments of government policy covering inter alia subsidies, tariffs and tariff rate quotas. State trading enterprises are also on the negotiating agenda though there is comparatively little...

Empirical studies of price transmission often suggest that imperfect pass-through may be due to market power exerted by food retailers. However, these econometric studies essentially lack any formal basis for tying the role of market power with data comprising of retail and producer prices only....

The persistence of oligopoly in the agricultural input supply sector suggests that farmers' economic welfare is reduced since the price of agricultural inputs will be in excess of marginal cost. This paper focuses on the U.K. fertilizer and tractor industries and measures the welfare impact on...

This paper is concerned with the impact of food scares, principally the BSE crisis, in the UK and focuses on price adjustment at different stages in a vertically-related market. From a theoretical perspective we show that if market power has an effect on the margin between retail and farm prices...