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UID:event-9446@www.amse-aixmarseille.fr
DTSTAMP:20260422T143922Z
CREATED:20260422T143922Z
LAST-MODIFIED:20260422T143922Z
STATUS:CONFIRMED
SEQUENCE:0
SUMMARY:phd seminar - Bertille Picard*\, Zheng Wang**
DTSTART:20221025T090000Z
DTEND:20221025T103000Z
DESCRIPTION:*Digital matching platforms promise to reduce frictions on the 
 labor market. In this study\, we propose to evaluate the impact of a commun
 ication campaign by email designed to encourage the use of an online matchi
 ng platform maintained by the French Public Employment Service\, Pôle empl
 oi. The intervention consists in sending emails to job seekers\, providing 
 information\, help and motivation to register or update their profiles on t
 he platform. We propose an innovative experiment design\, where we optimize
  the take-up rate and discover the best e-mail allocation within the experi
 ment using contextual bandits. Our design also allows us to derive results 
 on the impact of the platform's use on labor market outcomes. This presenta
 tion focuses on the design and the analysis of the first pilot results.**Th
 e endogeneity of network formation has been a major obstacle to the empiric
 al study of peer influence for many important types of networks\, including
  friendship networks\, buyer-supplier networks\, banking networks\, etc. Th
 is paper puts forward the first causal identification strategy in the liter
 ature to study the effect of non-randomly formed peer relationships. I prov
 e that causal identification holds under general conditions and needs neith
 er a network formation model nor an outcome model to be specified. This is 
 because the propensity scores of the unobserved confounders can be non-para
 metrically identified and estimated from the distribution of network links.
  Using the proposed method\, I empirically estimate the causal effect of hi
 gh school friendships on female students’ bachelor’s degree attainment.
  While previous literature finds that being exposed to more high-achieving 
 boys in high school makes girls less likely to obtain a bachelor’s degree
 \, I show that this is not true when these high-achieving boys are consider
 ed friends by the girls. In fact\, one additional high-achieving male frien
 d increases the probability that a female student graduates from college by
  3 p.p. Further analysis suggests that this positive influence is not a res
 ult of increased academic ability but rather comes from a significant confi
 dence boost. These results imply that rather than shielding girls from high
 -achieving boys\, it would be more effective to foster friendship and close
  interactions among them.\\n\\nContact: Camille Hainnaux : camille.hainnaux
 [at]univ-amu.frDaniela Horta Saenz : daniela.horta-saenz[at]univ-amu.frJade
  Ponsard : jade.ponsard[at]univ-amu.frNathan Vieira : nathan.vieira[at]univ
 -amu.fr\n\nPlus d'informations: https://www.amse-aixmarseille.fr/fr/eveneme
 nts/bertille-picard-zheng-wang
LOCATION:MEGA
URL;VALUE=URI:https://www.amse-aixmarseille.fr/fr/evenements/bertille-picard-zheng-wang
CONTACT:Camille Hainnaux : camille.hainnaux[at]univ-amu.frDaniela Horta Sae
 nz : daniela.horta-saenz[at]univ-amu.frJade Ponsard : jade.ponsard[at]univ-
 amu.frNathan Vieira : nathan.vieira[at]univ-amu.fr
TRANSP:OPAQUE
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