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Journal Article

No. 2013-31 | July 25, 2013
Potential Trade Distortion Effects of State Trading Enterprises under the Tariff-Rate Quota Scheme PDF Icon


The paper analyzes the potential trade distortion effects of state trading enterprises (STEs) on soybean imports to Korea. Traditionally, STEs have exercised exclusive rights to import the so-called strategic products, to ensure food security, domestic price stabilization, and import mark-ups. However, STE imports have been criticized on the grounds that industries using soybeans as a raw material are unable to obtain a diverse mix of quality material and cannot exercise the "right to choose" their own ingredients. Under a theoretical framework, a tariff equivalent of the STE is postulated to equate imports by private firms with imports by the STE. An empirical model is constructed and estimated using annual data spanning 1980–2009. The estimated results show that providing exclusive rights to imports has a negative effect on market access. When the STE pursues consumer welfare, the import-reducing effect turns out to be smaller than that in the producer welfare maximization case.

Data Set

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The data set for this article can be found at: http://hdl.handle.net/1902.1/20447

JEL Classification

F11 F13 Q17


Jung-Hyun Yoon and Song Soo Lim (2013). Potential Trade Distortion Effects of State Trading Enterprises under the Tariff-Rate Quota Scheme. Economics: The Open-Access, Open-Assessment E-Journal, 7 (2013-31): 1—19. http://dx.doi.org/10.5018/economics-ejournal.ja.2013-31


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