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Kangsik Choi

Researcher at Pusan National University

Publications -  77
Citations -  204

Kangsik Choi is an academic researcher from Pusan National University. The author has contributed to research in topics: Cournot competition & Bertrand competition. The author has an hindex of 7, co-authored 64 publications receiving 162 citations.

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Price and quantity competition in a unionised mixed duopoly: the cases of substitutes and complements*

TL;DR: In this paper, the authors investigate a differentiated mixed duopoly in which private and public firms can choose to strategically set prices or quantities when unions are present, and they show that regardless of the nature of goods, social welfare under Bertrand competition is always determined in equilibrium.
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Port privatization under Cournot vs. Bertrand competition: a third-market approach

TL;DR: In this paper, the authors analyze the port strategy in view of all trading countries (i.e. importing country and exporting countries) and find that regardless of transport cost, the port ownership strategy alters according to the exporting firm's competition mode.
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A reappraisal of strategic trade policies with the endogenous mode of competition under vertical structures

TL;DR: The authors examines the endogenous choice of competition mode with strategic export policies in vertically related markets when each upstream firm located in each country determines the terms of terms of a contract with the buyer.
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Welfare-improving vertical separation with network externality

TL;DR: In this article, the authors compare the outcomes of vertical integration and vertical separation and show that when both products are sufficiently close substitutes, there is a threshold level of the network externality parameter, beyond which vertical separation is more efficient than vertical integration.
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Tariff protection and port privatization: An import-competing approach

TL;DR: In this article, the authors examined the effect of port ownership on port charges, firm profits, and social welfare under free trade and a trade tariff regime and found that the home country chooses port privatization regardless of transport costs, while the foreign country always prefers public ownership to port privatization.