Welfare and market-access effects of piecemeal tariff reforms on environmentally preferable products

Shinya Kawahara

The Journal of International Trade & Economic Development, 2014, vol. 23, issue 6, 796-814

Abstract: We examine how welfare and market access are affected by piecemeal tariff reforms on environmentally preferable products (EPP) in a small open economy. We define EPP as clean goods that, when consumed, have no impact on pollution. First, we show that a uniform reduction of all tariffs improves welfare if a country's imports consist only of clean goods. If a clean good is a net substitute for all other goods in excess demand, then reducing the highest tariff on the clean good improves welfare. Second, we show that a proportional tariff reduction leading to a welfare improvement also increases the value of imports if all tariffs are set at the same ad valorem rates. If the clean good is a net substitute for all other goods in excess demand, then reducing the lowest tariff on the clean good increases the value of imports. Finally, we explore the link between the change in welfare and the change in the value of imports in response to the tariff reforms, and we show that unlike a proportional tariff reduction, a tariff reduction on the clean good does not necessarily lead to improvements in both welfare and market access.

Date: 2014
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DOI: 10.1080/09638199.2013.781206

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