Calendrier du 12 octobre 2020
Paris Migration Seminar
Du 12/10/2020 de 17:30 à 18:20
SIGNORELLI Sara (University of Amsterdam)
Do Skilled Migrants Compete with Native Workers? Analysis of a Selective Immigration Policy
In recent years high-skill immigration has been often encouraged by governments aiming to support their economy, but its impact on native workers facing a direct increase in competition is still debated. This paper addresses the question by taking advantage of a reform facilitating the hiring of foreign workers within a list of technical occupations. The analysis relies on administrative employer-employee data and applies a difference-in-differences approach. Results show that the reform was successful in boosting migrants' hires without affecting native employment. Wages decrease following the supply shift but, in contrast with the standard model predictions, do so twice as much for migrants than for natives. I find that two channels explain this differential effect: imperfect degree of substitution in production and differences in bargaining power. Overall, this paper provides evidence that policies encouraging high-skill migration do not excessively harm the native labor force.
Roy Seminar (ADRES)
Du 12/10/2020 de 17:00 à 18:00
online
DORON Ravid (University of Chicago)
Persuasion via Weak Institutions
écrit avec Elliot Lipnowski and Denis Shishkin
A sender commissions a study to persuade a receiver, but influences the report with some state-dependent probability. We show that increasing this probability can benefit the receiver and can lead to a discontinuous drop in the sender's payoffs. We also examine a public-persuasion setting, where we show the sender especially prefers her report to be immune to influence in bad states. To derive our results, we geometrically characterize the sender's highest equilibrium payoff, which is based on the concave envelope of her capped value function.
Texte intégral
Econometrics Seminar
Du 12/10/2020 de 16:00 à 17:15
on line
GUNSILIUS Florian (University of Michigan)
Distributional synthetic controls
This article extends the method of synthetic controls to probability measures. The distribution of the synthetic control group is obtained as the optimally weighted barycenter in Wasserstein space of the distributions of the control groups which minimizes the distance to the distribution of the treatment group. It can be applied to settings with disaggregated- or aggregated (functional) data. The method produces a generically unique counterfactual distribution when the data are continuously distributed. A basic representation of the barycenter provides a computationally efficient implementation via a straightforward tensor-variate regression approach. In addition, identification results are provided that also shed new light on the classical synthetic controls estimator. As an illustration, the method provides an estimate of the counterfactual distribution of household income in Colorado one year after Amendment 64.
Régulation et Environnement
Du 12/10/2020 de 12:00 à 13:00
https://zoom.us/j/98281389413?pwd=cWxiVzVPdVdCYm1Ec2pDcDYybk5tQT09
LEROUTIER Marion (PSE)
The Short-Run Effects of Maritime Traffic on Air Pollution and Health: evidence from Marseille, France
écrit avec Leo Zabrocki and Marie Abele Bind
Maritime traffic is expected to increase in the coming years due to the growth in international trade and global tourism. Today's residents of port cities benefit from the economic activity induced by maritime activities, but they also suffer from local air pollution externalities, which have triggered local public campaigns and media attention in the recent period. How much does maritime traffic contribute to local air pollution and health damages? We address this question using an exact matching procedure suited to time series data from Marseille, France's largest port city. We gathered detailed hourly and daily data on boat traffic, weather, air pollution, mortality and emergency admissions in Marseille.
We find that nitrogen dioxide and particulate matters concentrations are on average 2-3% higher than the baseline average in hours following a boat arrival or departure at the port located in the city center, compared to comparable hours with no boat traffic. The results seem to be driven by passenger boats rather than freight boats. At the daily level yet, we failed to detect a significant impact of boat traffic on short-term measures of cardio-vascular and respiratory mortality and morbidity. Future research is needed to investigate impacts at the neighborhood-level, for more subtle morbidity outcomes and in the longer term.
Paris Game Theory Seminar
Du 12/10/2020 de 11:00 à 12:00
room 314 (third floor) at Institut Henri Poincaré, 11 rue Pierre et Marie Curie, Paris 5ème.
PEREZ-RICHET Eduardo (Sciences Po, département d’économie)
Test design with unobservable falsification
We study receiver-optimal test design under manipulations by an agent who can falsify the data input of the test. We characterize an optimal test and an optimal falsification proof tests under different assumptions on the cost function, and discuss the welfare properties of such tests.