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Diskussionspapiere 2065 / 2023
This paper examines whether biased income expectations due to overconfidence lead to higher levels of debt-taking. We show suggestive evidence for a link between overconfidence and borrowing behavior in a representative survey of German households (GSOEP-IS). This motivates a laboratory experiment to study causality behind these effects. In two experiments, participants can purchase goods by borrowing ...
2023| Antonia Grohmann, Lukas Menkhoff, Christoph Merkle, Renke Schmacker
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Refereed essays Web of Science
According to theory, "sin taxes" are welfare improving if consumers with low self-control respond at least as much to the tax as consumers with high self-control. We investigate empirically if demand response to soft drink and fat tax variations in Denmark depends on consumers' self-control. We use a unique home-scan panel that includes a survey measure of self-control. When taxes increase, consumers ...
In:
American Economic Journal: Economic Policy
15 (2023), 3, S. 1-34
| Renke Schmacker, Sinne Smed
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DIW Weekly Report 22/23 / 2024
Merger control plays a central role in competition policy. When assessing proposed mergers, Competition Authorities should consider its impact on all relevant markets. Large mergers between manufacturers typically impact competition, thus requiring the approval of Competition Authorities. Divestitures are often a condition of merger approval. This report investigates the effectiveness of implementing ...
2024| Yann Delaprez, Morgane Guignard
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Refereed essays Web of Science
This paper examines whether biased income expectations due to overconfidence lead to higher levels of debt taking. We show suggestive evidence for a link between overconfidence and borrowing behavior in a representative survey of German households (German Socio-Economic Panel–Innovation Sample [GSOEP-IS]). This motivates a laboratory experiment to study causality behind these effects. In two experiments, ...
In:
Journal of Money, Credit and Banking
(2024), im Ersch. [online first: 2024-05-24]
| Antonia Grohmann, Lukas Menkhoff, Christoph Merkle, Renke Schmacker
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Brown Bag Seminar Industrial Economics
This paper studies how bargaining power is affected by merger and divestiture policies. I provide a new empirical framework to compute bounds on brand-level bargaining weights using widely available sales data. Next, I exploit the variation in brand ownership caused by a large merger, cleared conditional on divestiture, in the U.S. deodorant market, to quantify the extent to which divestitures...
28.06.2023| Yann Delaprez, European University Institute
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Brown Bag Seminar Industrial Economics
Merger and divestiture policies influence bargaining power in vertical relationships, a commonly underestimated factor. I develop a Nash-bargaining model with endogenous bargaining weights. Next, I present a novel empirical framework to identify bounds on the upstream bargaining weights between manufacturers and retailers at the brand level, solving bias due to endogenous selection of divestiture...
16.10.2024| Yann Delaprez, LUISS
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Refereed essays Web of Science
We decompose earnings risk into contributions from hours and wage shocks. To distinguish between hours shocks, modeled as innovations to the marginal disutility of work, and labor supply reactions to wage shocks, we formulate a life-cycle model of consumption and labor supply. For estimation, we use data on married American men from the Panel Study of Income Dynamics. Permanent wage shocks explain ...
In:
The Scandinavian Journal of Economics
125 (2023), 4, S. 956-996
| Robin Jessen, Johannes König
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Brown Bag Seminar Industrial Economics
This paper examines the impacts of new policies aimed at reducing the cost of renting by regulating the actions of intermediaries in the rental market. We highlight how information frictions between buyers and intermediaries can give rise to rents in the thick two-sided market. The distribution of these rents between intermediaries and sellers, as well as the impact of price regulation, depends on...
10.07.2024| Jan David Bakker, Bocconi University
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Berlin IO Day
The Berlin IO Day is a one-day workshop sponsored by the Berlin Centre for Consumer Policies (BCCP) and supported by the Berlin's leading academic institutions, including DIW Berlin, ESMT Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin, and Technische Universität Berlin. The aim is to create an international forum for high quality research in Industrial Organization in the heart...
27.09.2024| Joyee Deb (New York University), Alon Eizenberg (The Hebrew University of Jerusalem), Shota Ichihashi (Queen's University), Stephan Seiler (Imperial College London), Shoshana Vasserman (Stanford University)
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Conference
2023 Annual Meeting of the Committee for Industrial Economics of the Verein für Socialpolitik
30.03.2023