Differences regarding the liberalisation of agricultural markets are a central issue in the current Doha Round of WTO negotiations. The positions of the individual countries and country groups differ significantly as far as market access is concerned. The positions can be explained by the existing levels of market support and thus by potential agricultural income losses as a consequence of market liberalisation. The purpose of this paper is to analyse the dynamic impacts of different adjustment steps in endogenous development trends of markets and of exogenous market access and the resulting interactions between the agricultural markets. Adjustment steps of market access can consist of an expansion of tariff quotas and in a reduction of import tariffs. Our simulations show that price development and thus the development of the revenue from agricultural products depend on several factors. In addition to domestic supply and demand the temporal design of market liberalisation is a key influencing factor.
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