Handbook of Competition in Banking and Finance
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Handbook of Competition in Banking and Finance

Edited by Jacob A. Bikker and Laura Spierdijk

For academics, regulators and policymaker alike, it is crucial to measure financial sector competition by means of reliable, well-established methods. However, this is easier said than done. The goal of this Handbook is to provide a collection of state-of-the-art chapters to address this issue. The book consists of four parts, the first of which discusses the characteristics of various measures of financial sector competition. The second part includes several empirical studies on the level of, and trends in, competition across countries. The third part deals with the spillovers of market power to other sectors and the economy as a whole. Finally, the fourth part considers competition in banking submarkets and subsectors.
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Chapter 2: The Panzar–Rosse revenue test and market power in banking: an empirical illustration

Sherrill Shaffer and Laura Spierdijk


Although the theoretical literature has shown that the Panzar–Rosse H-statistic fails as a measure of market power, it is still a widely used statistic in empirical banking studies. Such studies still rely on the erroneous belief that H > 0 is inconsistent with significant market power. This chapter provides empirical evidence against the latter belief by analyzing a US banking duopoly. We find “competitive” estimates of H but, consistent with a priori expectations, non-competitive outcomes according to an alternate measure of competition, the Lerner index. Moreover, our bank-specific estimates of H are mutually inconsistent, suggesting additional problems with the Panzar–Rosse test.

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