Natural Inter-firm alliances accompanied by partial equity ownership: Theoretical analyses (Japanese)

Hodaka Morita, Kumpei Akiyama, Tomohiro Ara, Shosuke Noguchi and Arghya Ghosh

No 10, TUPD Discussion Papers from Graduate School of Economics and Management, Tohoku University

Abstract: Partial equity ownership (PEO) between horizontally competing firms may have negative impacts on the society by increasing firms' market power and weakening their competition. At the same time, PEO may also have positive impacts on the society by inducing knowledge transfer between competing firms and shifting outputs from a cost ineffective firm to a cost effective firm. As oligopoly models that explores the trade-off of these positive and negative impacts, we discuss the model of Ghosh and Morita (2017) that focuses on the link between PEO and knowledge transfer, and the model of Ara, Ghosh and Morita (2021) that focuses on the shift of outputs in international contexts, clarifying the process through which the level of PEO is endogenously determined in these models. We also discuss Akiyama's (2021) model of joint venture (JV) in which two horizontally competing firms can establish a JV, exploring the process through which the ratio of JV's equity ownership is endogenously determined. We discuss policy implications of these models.

Pages: 25 pages
Date: 2021-11-28
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