2015
DOI: 10.1111/jels.12080
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Tacit Collusion: The Neglected Experimental Evidence

Abstract: Both in the United States and in Europe, antitrust authorities prohibit merger not only if the merged entity, in and of itself, is no longer sufficiently controlled by competition, but also if, post merger, the market structure has changed such that “tacit collusion” or “coordinated effects” become disturbingly more likely. It seems that antitrust neglects the fact that for more than 50 years, economists have been doing experiments on this very question. Almost any conceivable determinant of higher or lower co… Show more

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Cited by 14 publications
(5 citation statements)
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“…9 Theoretically, our framework leaves no scope for collusion. On the basis of previous experimental evidence on finitely repeated games, however, collusion is to be expected for the earlier rounds of the interaction (see, e.g., Potters & Suetens, 2013, or Engel, 2015.…”
Section: Collusionmentioning
confidence: 99%
“…9 Theoretically, our framework leaves no scope for collusion. On the basis of previous experimental evidence on finitely repeated games, however, collusion is to be expected for the earlier rounds of the interaction (see, e.g., Potters & Suetens, 2013, or Engel, 2015.…”
Section: Collusionmentioning
confidence: 99%
“…Theoretically, this leaves no scope for collusion. However, based on previous experimental evidence, we would expect tacit collusion 23 to occur during the earlier periods of the repeated interaction (see, e.g., Brosig-Koch, Hennig-Schmidt, et al, 2017;Engel, 2015;Potters & Suetens, 2013;Suetens & Potters, 2007).…”
Section: Competitionmentioning
confidence: 99%
“…Allerdings lassen sich in natürlicher Umgebung die vielen äußeren Einflussfaktoren nur schwer kontrollieren, weshalb zwar Korrela tionen aufgedeckt werden können, es jedoch häufig schwierig ist Kausalbe ziehungen herzustellen. 860 Mithin mangelt es bei Feldexperimenten an der internen Validität.…”
Section: Die Validität Verhaltensökonomischer Experimenteunclassified
“…861 Indem die Experimenta toren das Entscheidungsumfeld sowie die Handlungsoptionen vorgeben und kontrollieren können, lassen sich Einflussfaktoren isoliert betrachten und Kausalbeziehungen identifizieren. 862 Dies geht jedoch zugleich zu Lasten der externen Validität. Um sicherzustellen, dass es nicht mehr als den einen Unterschied zwischen Baseline und Treatment gibt, weicht die Laborumge bung in der Regel deutlich von den Gegebenheiten realer Märkte ab.…”
Section: Die Validität Verhaltensökonomischer Experimenteunclassified
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