Collusion with intertemporal price dispersion

Nicolas de Roos and Vladimir Smirnov

RAND Journal of Economics, 2020, vol. 51, issue 1, 158-188

Abstract: We develop a theory of optimal collusive intertemporal price dispersion. Dispersion clouds consumer price awareness, encouraging firms to coordinate on dispersed prices. Our theory generates a collusive rationale for price cycles and sales. Patient firms can support optimal collusion at the monopoly price. For less patient firms, monopoly prices must be punctuated with fleeting sales. The most robust structure involves price cycles that resemble Edgeworth cycles. Low consumer attentiveness enhances the effectiveness of price dispersion by reducing the payoff to deviations involving price reductions. However, for sufficiently low attentiveness, price rises are also a concern.

Date: 2020
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https://doi.org/10.1111/1756-2171.12309

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Working Paper: Collusion with intertemporal price dispersion (2019)
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