학술논문
Substitution Elasticity and Gains from Trade Variety in South Korea
이용수 8
- 영문명
- Substitution Elasticity and Gains from Trade Variety in South Korea
- 발행기관
- 한국무역학회
- 저자명
- 강기천
- 간행물 정보
- 『Journal of Korea Trade (JKT)』Vol.26 No.7, 1~18쪽, 전체 18쪽
- 주제분류
- 경제경영 > 무역학
- 파일형태
- 발행일자
- 2022.11.30
4,960원
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국문 초록
영문 초록
Purpose - Recent international studies have largely focused on measuring the welfare gains from increased trade varieties. To adequately capture the variety gains, it is of importance to estimate the elasticity of substitution between varieties of trade goods because it is one of the key parameters to determine the magnitude of the variety gains. Using the import data of South Korea, this paper shows that the elasticities vary substantially across the estimators, which affects the magnitude of the gains from trade.
Design/methodology - Empirical studies working on the gains from trade variety have heavily depended on the estimation methods for the elasticity of substitution between trade varieties, developed by Feenstra (1994) and refined by Broda and Weinstein (2006). We estimate and compare the estimated elasticities for 8,945 HS 10 goods of South Korea, obtained from the three estimation methods: Feenstra’s weighted least square (F-WLS), Feenstra’s feasible generalized least square (FFGLS), and Broda and Weinstein’s feasible generalized least square (BW-FGLS).
Findings - Using the estimated elasticities from the F-FGLS, considered as a suitable estimator, A typical Korean consumer saved 228 dollars per year by the greater access to new import varieties. This leads to gains from imported variety of 2.06% of GDP. In 2017, a typical Korean consumer would gain by 611 dollars, compared with 2000. China is the country with the largest contribution (28.4%), followed by Japan and USA. About 50% of all the welfare gains come from the imports from the three main trade partners. The Southern Asian countries are more important to the South Korean welfare gain than the Western European countries.
Originality/value - Existing studies have chosen one of the methods without any criterion for the choice and then estimated the elasticities of substitution between varieties of trade goods. This paper focuses on the estimation specifications and methods as the cause of the disparity in estimated elasticities and welfare gains from trade variety. According to the Ramsey RESET and White tests, the F-FGLS estimates are relatively better compared to the F-WLS and BW-FGLS estimates. As another contribution, this paper provides the first measure of the welfare gains from trade variety for South Korea, using the estimated elasticities of substitution between trade varieties.
목차
1. Introduction
2. Model Specifications and Estimation Methods
3. Estimated Substitution Elasticities in South Korea
4. Tests for Misspecifications and Heteroscedasticity
5. Magnitude of Trade Variety in South Korea
6. Conclusion
References
해당간행물 수록 논문
- Journal of Korea Trade Vol.26 No.7 목차
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- When does Improvisational Capability Matter to International Entrepreneurship? The Contingent Role of Home-Based Network Ties and the Boundary Condition of Competitive Turbulence
- Restitution as the Consequence of Frustration under English Law and Korean Law in a Comparative Perspective
- The Semiconductor Industry and High-Quality Economic Development: An International Perspective
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