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Title: Profitability, concentration, imports and exports: the case of Taiwan's midstream petrochemical industries
Authors: Wang, Kuo-Liang;Wang, Shu-Ching
Contributors: 經濟系
Date: 2008-06
Issue Date: 2015-09-03 16:58:55 (UTC+8)
Abstract: Based on an open-economy oligopoly model, causalities among domestic firms' price-cost margin (PCM), domestic concentration, import and export shares are derived and a simultaneous-equation system is established. By utilizing the 1989-1997 data of Taiwan's midstream petrochemical industries, three-stage least squares is used to estimate the system. The empirical results confirm the derived results, and demonstrate: (1) there exist simultaneous relationships among domestic PCM, domestic concentration, import and export shares; (2) import concentration affects domestic concentration positively, but affects domestic PCM, import and export shares negatively; (3) diversifying international markets improves domestic firms' PCM; (4) domestic firms seem to be in a situation of collusion.
Relation: Applied Economics, 40(11), 1457-1473
Data Type: article
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Appears in Collections:[經濟學系] 期刊論文

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