Seoul Journal of Economics
[ Article ]
Seoul Journal of Economics - Vol. 35, No. 1, pp.33-58
ISSN: 1225-0279 (Print)
Print publication date 28 Feb 2022
Received 20 Nov 2021 Accepted 24 Nov 2021

Consumer Responses to Price Shocks of Wine Imports in Korea

Chul Chung* ; Min-chirl Chung** ; Bonggeun Kim***
*Chul Chung, Researcher, Korea Institute for International Economic Policy, Tel: 82-044-414-1184
**Min-Chirl Chung, Researcher, Korea Institute for International Economic Policy, Tel: 82-044-414-1154
***Bonggeun Kim, Corresponding author, Professor, Department of Economics and Korea Bureau of Economic Research and Innovation, Seoul National University, Tel: 82-2-880-6240

JEL Classification: D11; D12; F14


The main purpose of the study is to develop a methodology that divides consumers’ responses to free trade agreements (FTAs) or commodity taxes into quantitative and qualitative margins, which cause exogenous price changes for certain specific goods. Unlike the usual method of using unit values as a proxy variable for market prices, the use of unit values as a dependent variable for consumers’ qualitative choice showed that qualitative responses to price changes exist, and their size is significant. The methodology of separating and estimating qualitative responses to income changes as in economic crises revealed that many of the existing income effects are qualitative responses. As a key result, the price elasticity of −1.178 estimated by the usual demand model based on a single commodity assumption was reduced to −0.712 for the quantitative margin only, and the qualitative margin was the remaining −0.466, which accounted for more than a third of the overall response. The significant degree of qualitative response estimates suggests that policy makers and researchers should consider qualitative response as an important factor when analyzing the effectiveness of FTAs, especially in consumption.


FTA, commodity tax, price elasticity of wine consumption, quality choice, unit value, quality-adjusted price


This paper is a revised version of the Korea Institute for International Economic Policy Working Paper 21-01. We would like to thank Hur Jung, Kim Jong Duck, and the two anonymous reviewers for their helpful comments on the KIEP Working Paper. This work was supported in part by the Korea Bureau of Economic Research and Innovation.


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