Lundi 28 mai
International Workshop on Competition, Regulation and Procurement
An International Workshop on Competition, Regulation and Procurement is co-organized by the labex Ose from May 28 to 29.
Venue : Room 508 / 9-11 Myasnitskaya street, Moscow
Find more information thanks to this link
Régulation et environnement | 12:00-14:00
Salle R1-13, Campus Jourdan, 48 boulevard Jourdan, 75014 Paris
ELLISON Glenn (MIT) : A Model of Online Retail Recommendations
ROY | 17:00-18:30
Salle R1-09, Campus Jourdan, 48 boulevard Jourdan, 75014 Paris
FEINMESSER Itay (Johns Hopkins University) : The Market for Influence
Résumé
Much of the content we consume comes from onlineresources. We read news on Facebook and Twitter and learn about new products and services from Instagram and blogs. This paper builds a parsimonious economic model that captures the interplay between contentcreators (or influencers), consumers (or followers), and firms (or marketers) in the provision of content on the internet, and in influencing economic activity in the market for goods. We derive a unique equilibrium with the following properties : First, high ability influencers post more sponsored content, and this adversely affects the experience of their followers. Still, high ability influencers deliver, in equilibrium, better experience then low ability ones. As a result, high ability influencers have more followers, and receive a higher per-post price. Surprisingly, the per-reader price that an influencer receives declines with her popularity, a result that is confirmed by marketing data. We uncover equilibrium inefficiencies that are exacerbated by search frictions in the market and analyze the recent recommendation of the Federal Trade Commission (FTC) to apply “The FTC’s Endorsement Guides” to content created by individual influencers. Under a wide range of parameters, such policy may be detrimental to followers’ welfare and total surplus.
Mardi 29 mai
International Workshop on Competition, Regulation and Procurement
An International Workshop on Competition, Regulation and Procurement is co-organized by the labex Ose from May 28 to 29.
Venue : Room 508 / 9-11 Myasnitskaya street, Moscow
Find more information thanks to this link
Economie appliquée | 12:30-13:30
Salle R1-09, Campus Jourdan, 48 boulevard Jourdan, 75014 Paris
BACH Laurent (ESSEC Business School) : From Saving Comes Having ? Disentangling the Impact of Saving on Wealth Inequality
Résumé
This paper investigates the channels through which saving flows impact the dynamics of wealth inequality. The analysis relies on an administrative panel that reports the assets and income of every Swedish resident at the yearly frequency. We document that the saving rate, defined as saving from labor income divided by net worth, is on average a decreasing function of net worth itself. The saving rate is also highly heterogeneous within net worth brackets. Heterogeneity across and within net worth brackets have conflicting effects on wealth inequality. As a result, saving rate heterogeneity is measured to have a strong impact on social mobility but only a weak impact on the distribution of net worth. Heterogeneity in wealth return is instead the main driver of the recent increase in top wealth shares.
Trade | 14:30-16:00
Salle R2-21, Campus Jourdan, 48 boulevard Jourdan, 75014 Paris
OSSA R. (Zurich) : Accounting for the New Gains from Trade Liberalization
Chang-Tai Hsieh University of Chicago and NBER, Nicholas Li University of Toronto, Mu-Jeung Yang University of Washington, Seattle
ONG | 16:30-18:00
Salle R1-15, Campus jourdan, 48 boulevard Jourdan 75014 Paris
DIETRICH Simone (University of Geneva) : Comparing elite and citizen preferences for bypass or engage aid : evidence from survey experiments in US,UK, Germany and France
PSI - PSE | 17:00-18:00
Salle R1-13, Campus Jourdan, 48 boulevard Jourdan, 75014 Paris
LETROUIT Lucie : How do social norms affect credence goods markets ? Theoretical and experimental analysis of joking relationships and land transactions in Mali
Mercredi 30 mai
Paris migration | 9:00-19:00
CEPII, Room 5.107 , 113 rue de Grenelle 75007 Paris
CEPII and Paris School of Economics Workshop on Migration and Trade
Organizers : Gianluca Orefice (CEPII) and Hillel Rapoport (PSE and CEPII)
Histoire économique | 12:30-14:00
Salle R2-01, Campus Jourdan, 48 boulevard Jourdan, 75014 Paris
PIKETTY Thomas : Inégalité et conflit politico-idéologique. France, Royaume-Uni, Etats-Unis 1948-2017
Soutenance de thèse | 14:00-15:30
UNGARO Stefano : The relationship between money and financial markets in France : 1880-1914 - Sous la direction de HAUTCOEUR Pierre-Cyrille
Salle R1-09, Campus Jourdan, 48 boulevard Jourdan, 75014 Paris
Economie du développement | 16:30-18:00
Salle R2-01, campus Jourdan, 48 boulevard Jourdan 75014 Paris
ALLEN T. (Dartmouth College) : The Geography of Path Dependence
Co-authors : DONALDSON Dave (MIT)
Résumé
How much of the distribution of economic activity today is determined by history rather than by geographic fundamentals ? And if history matters, does it matter much ? We develop an empirical framework that enables answers to these questions. Our model combines a workhorse model of trade subject to geographic frictions with an overlapping generations model of labor mobility also subject to spatial fractions. Both production and consumption potentially exhibit local agglomeration and congestion externalities. We derive parameter conditions, for arbitrary static and dynamic geographic scenarios, under which equilibrium transition paths are unique and yet steady states may nevertheless be non-unique — that is, where initial conditions (“history”) determine long-run steady-state outcomes (“path dependence”). We then estimate the model’s parameters (which govern the strength of agglomeration externalities and trade and migration frictions), by focusing on moment conditions that are robust to potential equilibrium multiplicity, using spatial variation across US counties from 1800 to the present. At these parameter estimates our simulations — based on randomly reassigning the geographical incidence of various shocks among members of similar regional clusters — imply the the long arm of history has only small consequences for the distortions caused by spatial path dependence.
Jeudi 31 mai
Soutenance de thèse : 12:00-13:30
MUSIC Almedina : Empirical essays on the effects of shocks and vulnerability on education and social cohesion in developing countries - Sous la direction de STANCANELLI Elena
Salle R1-13, Campus Jourdan, 48 boulevard Jourdan, 75014 Paris
Comportement | 11:00-12:00
Salle R2-21, Campus Jourdan, 48 boulevard Jourdan, 75014 Paris
FLEURBAEY Marc (Princeton University) : If you’re an egalitarian, how come you’re not a vegan ?
We study fairness in economies where humans consume one private good and one public good, the latter representing the welfare of other species. We show that it is impossible for a social evaluator to be egalitarian with respect to humans and be speciesist, in the sense of always respecting unanimous preferences among humans (even when they imply harming other species). One solution is to only impose a re- spect for unanimity among humans when it does not lead to a decrease in the welfare of other species. Characterizing social preferences satisfying these properties reveals a surprising link between concerns for other species, egalitarianism among humans, and unanimity : the latter two imply a form of dictatorship from humans with the strongest preferences for the welfare of other species. Travail et économie publique | 12:30-13:30
KHOURY Laura (Paris School of Economics) : Unemployment Benefits and the Timing of Dismissals : Evidence from Bunching at a Notch in France
Résumé
In this paper, I use administrative unemployment data to analyse bunching in the workers’ seniority distribution, at a notch created by an unemployment benefit schedule designed for workers laid-off for economic reasons. I exploit the discontinuity in the level of the budget set to estimate an elasticity of labour supply to unemployment benefits. I also investigate the possible channels of strategic behaviours in a context where the dismissal decision is the result of bargaining between employer, employee and representatives within the firm. I find evidence that significant bunching occurs at the relevant seniority threshold as a response to incentives created by the unemployment benefit scheme : employers and employees maximise joint surplus thanks to a third party’s - the State - transfer. I find that this bunching is concentrated in the population who has the most to gain and is the most able to implement strategic behaviours and to take advantage of unemployment compensation rules.
Séance 4 Evaluation d’impact des politiques publiques : Quelles données pour l’évaluation des politiques publiques ? Le cas de la politique de santé | 13:30-17:00
Le 31 mai, se déroulera la séance 4 Evaluation d’impact des politiques publiques : Quelles données pour l’évaluation des politiques publiques ? Le cas de la politique de santé coordonné par France Stratégie.
Lieu : Ecole d’économie de Paris, 48 boulevard Jourdan 75014 Paris. Amphithéatre.
Pour plus d’informations voici lapage dédiée
Vendredi 1er juin
Casual Friday | 12:45-13:45
Salle R1-09, Campus Jourdan, 48 boulevard Jourdan, 75014 Paris
ATALLAH Marian (PSE) : Skills and Self-Employment in Developing Countries : Evidence from the World Bank’s STEP surveys