Superstar Firms and Aggregate Fluctuations

Qazi Haque, Oscar Pavlov and Mark Weder

CAMA Working Papers from Centre for Applied Macroeconomic Analysis, Crawford School of Public Policy, The Australian National University

Abstract: The rise of market power in the last decades is primarily driven by the largest firms. We propose a theory of these superstar firms in which their technology involves the ability to produce multiple products. Superstars interact with smaller competitors and market share reallocations and product creation generate heterogeneous markup dynamics across firms. Higher market shares of superstars increase the parameter space for macroeconomic indeterminacy. Bayesian estimation of the general equilibrium model suggests the importance of the endogenous amplification of the product creation channel and animal spirits play a non-trivial role in driving U.S. business cycles.

Keywords: superstars; multi-product firms; business cycles; animal spirits; Bayesian estimation (search for similar items in EconPapers)
JEL-codes: E32 (search for similar items in EconPapers)
Pages: 38 pages
Date: 2024-02
New Economics Papers: this item is included in nep-bec, nep-com and nep-dge
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https://cama.crawford.anu.edu.au/sites/default/fil ... que_pavlov_weder.pdf (application/pdf)

Related works:
Working Paper: Superstar Firms and Aggregate Fluctuations (2024)
Working Paper: Superstar firms and aggregate fluctuations (2024)
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Persistent link: https://EconPapers.repec.org/RePEc:een:camaaa:2024-15

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