2024 - Reprints: Managerial Economics

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Aggregating inconclusive data sets, Games and Economic Behavior, 146, 77-90, 2024
Gayer, E. Lehrer and D. Persitz
(Reprint No.: 435)
Research No.: 06921100

https://doi.org/10.1016/j.geb.2024.04.011

 

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An administrator is provided with data collected by several practitioners. These data may include inconclusive observations. The administrator is required to form a frequency distribution on the states of nature that would be approved by external auditors as long as it is compatible with the available information. We state a novel result on the compatibility of a probability with a finite set of capacities. We use this result to provide necessary and sufficient conditions for the compatibility of the administrator’s frequency distribution with the data collected by the practitioners, according to two auditing criteria.

 

Price Fixing or Fixing Competition?: Bread in Israel, In J. Harrington & M. P. Schinkel (Eds.), Cartels Diagnosed: New Insight on Collusion, Cambridge University Press, 2025
C. Fershtman and Y. Spiegel
(Reprint No.: 438)
Research No.: 08624100

https://doi.org/10.1017/9781009428460.005

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In this case of a bread cartel in Israel, the bakeries’ executives agreed to raise the price of sliced dark bread and challah in some stores and to stop competing in each other’s local markets. Overall, the bakeries complied with these agreements. Although the executives admitted to most of the charges, their interpretation of the events differed from those of the Israeli Competition Authority (ICA) and that is where the case becomes interesting.
The market power of retail chains caused bakeries to sell sliced dark bread and challah at a loss in order to be able to sell other bread products to retailers. From that normal state of affairs, in response to entry into its home market, one of the bakeries started offering stores a special deal of "3 loaves for 10 shekels NIS (Israeli new shekel)". A few months later, the bakeries entered into an unlawful agreement to stop the "3 for 10" deals (along with raising some other prices).
The ICA argued that, prior to the agreement, the bakeries had fiercely competed and the intent of the cartel was to raise prices to supracompetitive levels. The ICA also claimed that, but for the cartel, this level of competition would have continued indefinitely. In contrast, the bakeries claimed the motivation for the agreements was to stop a price war from spreading to other stores. They saw their conduct as intended to raise prices to competitive levels from subcompetitive levels, and that the fierce competition was an aberration that would not have lasted long even without collusion.
It is not clear whether the “normal” conduct that the agreement restored was one of genuine competition or of a tacit agreement involving an allocation of geographic markets (which the aggressive conduct preceding the agreement may have violated).

The Impact of Environmental Fraud on The Used Car Market: Evidence from DieselgateThe Journal of Industrial Economics, 70(2), 463-49, 2022
I. Ater and N. S. Yoseph
(Reprint No.: 441)
Research No.: 07890100

https://doi.org/10.1111/joie.12276

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This study explores the effects of Volkswagen’s 2015 emissions scandal (‘Dieselgate’) on the used car market in Israel. Using a difference-in-differences research design and administrative and proprietary data, we find that after Dieselgate the number of transactions involving VW-manipulated cars fell by 18%, and the resale price of these cars fell by 6%. The drop in the number of transactions was concentrated among private sellers. We discuss alternative explanations and suggest that lower willingness-to-pay and adverse selection following Dieselgate could explain our findings.

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