Generalized linear competition: from pass-through to policy

Genakos, Christos, Grey, Felix and Ritz, Robert A. (2020) Generalized linear competition: from pass-through to policy. CEP Discussion Papers (1709). Centre for Economic Performance, LSE, London, UK.

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Abstract

Economic policy and shifts in input market prices often have significant effects on the marginal costs of firms and can prompt strategic responses that make their impact hard to predict. We introduce "generalized linear competition" (GLC), a new model that nests many existing theories of imperfect competition. We show how firm-level cost pass-through is a sufficient statistic to calculate the impact of a cost shift on an individual firm's profits. GLC sidesteps estimation of a demand system and requires no assumptions about the mode of competition, rivals' technologies and strategies, or "equilibrium". In an empirical application to the US airline market, we demonstrate GLC's usefulness for ex ante policy evaluation and identify the winners and losers of climate-change policy. We also show how GLC's structure, under additional assumptions, can be used for welfare analysis and to endogenize the extent of regulation.

Item Type:	Monograph (Discussion Paper)
Official URL:	https://cep.lse.ac.uk/_new/publications/discussion...
Additional Information:	© 2020 The Authors
Divisions:	Centre for Economic Performance
Subjects:	H Social Sciences > HB Economic Theory H Social Sciences > HD Industries. Land use. Labor
JEL classification:	D - Microeconomics > D4 - Market Structure and Pricing > D43 - Oligopoly and Other Forms of Market Imperfection H - Public Economics > H2 - Taxation, Subsidies, and Revenue > H23 - Externalities; Redistributive Effects; Environmental Taxes and Subsidies L - Industrial Organization > L5 - Regulation and Industrial Policy > L51 - Economics of Regulation L - Industrial Organization > L9 - Industry Studies: Transportation and Utilities > L93 - Air Transportation
Date Deposited:	19 Jan 2021 09:51
Last Modified:	15 Sep 2023 23:53
URI:	http://eprints.lse.ac.uk/id/eprint/108481

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