An Analysis of the Market Power under the Antimonopoly Law: Weight Adjustment and Logic Remodeling

Abstract

Abstract: Under the anti-monopoly law, market power is the key to determine whether monopoly behavior can be achieved, implemented and have substantial market impact. For a long time, the cognition of market power has been blurred in its quantitative and qualitative dimensions, and has formed an inherent pattern that market power determines the competitive effect as a one-way street, which has failed to guide practical development effectively. To improve the legal interpretation, first of all, we should clarify the institutional expression of market power, establish the internal dimension of the market power evaluation standard, and examine the significance and limitation of market share as an indicator quantitatively and qualitatively. Next, based on the characteristics of the digital market, we should analyze the weight adjustment of traditional evaluation factors after absorbing such key factors as network effect and lock-in effect in market power evaluation, and confirm the logic of evaluation centered on competitive effect analysis. Finally, we should break the conception that the relationship between market power assessment and competitive impact analysis is a one-way street, establish the external logic of two-way correlation between them, and reshape the normative structure and key nodes of market power assessment accordingly.

Key words: anti-monopoly law, market power, market share, monopolistic conduct, digital market

CLC Number:

D922

Jiang Shan. An Analysis of the Market Power under the Antimonopoly Law: Weight Adjustment and Logic Remodeling[J]. Journal of Jiangxi University of Finance and Economics, 2025, 0(1): 112-126.

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