GTAP Resources: Resource Display
| GTAP Resource #7507 |
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"Non-Tariff Measures and Ad-Valorem Equivalent estimates using WTO Notifications and UNCTAD TRAINS data" by Ikeme, Sionegael, Amanda M. Countryman, Dale Manning and Diane Charlton Abstract Non-tariff measures (NTMs) play a growing role in trade policy. Economists quantify NTMs by calculating their Ad Valorem Equivalents (AVE), typically employing one of two global NTM datasets: TRAINS from UNCTAD or WTO notifications. While TRAINS data better measure NTMs, their limited coverage over countries and time is inadequate for many types of analyses, and thus researchers often resort to using WTO data, which is not as accurate as TRAINS but has better coverage. We compare the two datasets to assess whether AVEs from WTO notifications align with those from TRAINS, given similar country and time coverage. We find significant AVE discrepancies between datasets, sometimes reversing signs, warranting caution when using WTO notifications in the absence of TRAINS data to construct NTMs. |
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- Other data bases and data issues - Non-Tariff barriers - Global - South America |
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Public Access  Paper (644.2 KB) Replicated: 0 time(s)Restricted Access No documents have been attached. Special Instructions No instructions have been specified. |
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Last Modified: 9/15/2023 2:05:45 PM
