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GTAP Events: Center Seminar Series

"Methods to Aggregate Import Tariffs and Their Impacts on Modeling Results"
by Janine Pelikan

Market access is a highly controversial issue in the agricultural negotiations of the Doha Round. On the political front, several proposals were made to deal with this issue. Based on these proposals, many empirical studies analyze their impacts with a wide margin of results. This presentation deals with different variables that influence the modeling results. In the centre are different approaches for tariff aggregation. It shows theoretically that, on the one hand, the level at which the tariff reductions are implemented is important for the model results, meaning when (before or after the reduction) the tariffs were aggregated. On the other hand, the model results are influenced by the aggregation method, meaning how the tariffs are aggregated. Therefore, four tariff aggregators and their impact on welfare results of the GTAP model are analyzed. Here, the simple and trade weighted average tariff is compared with the Trade Restrictiveness Index (TRI) and the Mercantilist Trade Restrictiveness Index (MTRI).

Date/Time: 2/10/2010   02:00 PM - 03:00 PM
Location: KRAN 661