Forschungsseminar

MSM Forschungsseminar

Das Forschungsseminar der Fakultät findet mittwochs von 12.00 bis 13.00 Uhr im Raum LB 338 statt. Einzelne Termine können auch online via Zoom stattfinden (der Zugang hierfür wird über die Mailingliste verschickt).

Mailingliste-

Bitte abonnieren/kündigen Sie die Mailingliste unter https://lists.uni-due.de/mailman/listinfo/msm-forschungsseminar oder schreiben Sie eine E-Mail an finance (at) uni-due.de.

Sommersemester 2025

23.04.2025Prof. Arnaud Chevalier / RHUL
 

The Taste for Discrimination

We test Becker's prediction on employer racial prejudice in a dynamic environment where discrimination is not illegal and information on all workers’ productivity is available to all firms. The firms considered are the more than 2 million participants to Fantasy Football (soccer), an on-line game where participants manage a team of real footballers  over a nine-month period. We find that the marginal non-white footballer needs to be more productive than a white footballer to be recruited, promoted and to avoid dismissal. These decisions lead to firms becoming “whiter” over time.

These effects are strongest among the most productive footballers but, because elite footballers are close substitutes, the productivity losses of discrimination are limited. Allied to an environment where discrimination is not illegal, and mostly private, this allows virtual employers to satisfy their taste for discrimination. The results are robust to three different measures of race.

14.05.2025Prof. Alexander Westkamp / Universität zu Köln
 

Marginal Mechanisms For Balanced Exchange /Co-Author: Vikram Manjunath (University of Ottowa)

We consider the balanced exchange of bundles of indivisible goods. Allocations are determined via a mechanism that only relies on marginal preferences over individual objects even though agents’ actual preferences compare bundles. Such mechanisms play an important role in two-sided matching but have not received much attention in exchange settings. We show that individually rational and (Pareto-)efficient marginal mechanisms exist if and only if no agent ever ranks any of her endowed objects lower than in her second indifference class. For such trichotomous preferences, we show that a form of serial dictatorship over individually rational matchings achieves individual rationality and efficiency on basis of only agents’ marginal preferences.

We then turn to strategy-proofness. An individually rational, efficient and strategy-proof mechanism - marginal or not - exists if and only if no agent ever ranks (1) any of her endowed objects lower than in her second indifference class, or (2) a non-endowed object in her second indifference class together with some of her endowed objects. For such strongly trichotomous preferences, our mechanisms reduce to the class of strategy-proof mechanisms introduced in [Manjunath and Westkamp, 2021]. On the domain of all trichotomous preferences, while our variant of serial dictatorship is not strategy-proof, it is truncation-proof and not-obviously manipulable in the sense of [Troyan and Morrill, 2020].

11.06.2025

Morgan Patty / Université Paris-Saclay
  

09.07.2025

Prof. Dr. Markus Huggenberger / St. Gallen
  

Vergangene Vorträge

Hier finden Sie eine Übersicht über vergangene Vorträge.