Calendrier du 30 septembre 2019
Roy Seminar (ADRES)
Du 30/09/2019 de 17:00 à 18:30
salle R1-09, campus Jourdan - 75014 Paris
SQUINTANI Francesco (University of Warwick)
Information Transmission in Political Networks
Motivated by political economy applications such as networks of policy-makers, interest groups, or judges, I formulate and study a model of information transmission in networks of ideologically differentiated agents. When all agents’ ideologies are sufficiently diverse, the optimal network is the line in which the agents are ordered according to their ideologies. When agents are partitioned in ideologically diverse clusters, each composed of agents with similar views, it is optimal for all agents that the clusters organize as factions: stars whose only links are with ideologically close clusters through star centers (the faction leaders). Such optimal networks obtain as Nash equilibria of a game in which each link requires sponsorship by both connected agents, and are the unique strongly pairwise stable networks. These results suggest positive and normative rationales for “horizontal” links between like-minded agents in political networks, as opposed to hierarchical networks such as the star, that have been shown to prevail in organizations where agents’ preferences are more closely aligned.
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GSIELM (Graduate Students International Economics and Labor Market) Lunch Seminar
Du 30/09/2019 de 13:00 à 14:00
Maison des Sciences Economiques, Salle 116
EL MALLAKH Nevine (Paris 1)
The impact of public research institutions on Innovation
écrit avec Nevine El-Mallakh (Paris 1), Caroline Paunov (OECD) and Martin Borowiecki (OECD)
The aim of this paper is to investigate the impact of research institutions on innovation creation in the manufacturing sector. We find evidence on the existence of positive effects of exposure to Higher Education Institutions (HEIs) and Public Research Institutes (PRIs) on patenting activities of 36 OECD countries and China for the period 1992-2014. The evidence, which is obtained from a newly compiled database at postal code level, reveals that geographical proximity to universities is associated with more industry patenting, after controlling for differences across postal codes and country-year shocks. The results also hold when exploiting an instrumental variable approach to alleviate possible endogeneity of university location. The latter can be traced back to historical mines and public spending in R&D conducted by research institutions, which would have little direct connection to industry patenting at postal code level. We also explore possible heterogeneity of these effects and our results suggest that universities positively influence the patenting activities of local industry, especially in life and digital technologies.
Régulation et Environnement
Du 30/09/2019 de 12:00 à 13:00
salle R1-13, campus Jourdan - 75014 Paris
REILEY David (University of California - Berkeley)
Measuring Consumer Sensitivity to Audio Advertising:A Field Experiment on Pandora Internet Radio
écrit avec Jason Huang, Nickolai M. Riabov
Measuring Consumer Sensitivity to Audio Advertising:A Field Experiment on Pandora Internet RadioJason HuangDavid H. ReileyNickolai M. Riabov?April 21, 2018AbstractA randomized experiment with almost 35 million Pandora listeners enables us to measure the sensi-tivity of consumers to advertising, an important topic of study in the era of ad-supported digital contentprovision. The experiment randomized listeners into nine treatment groups, each of which received adifferent level of audio advertising interrupting their music listening, with the highest treatment groupreceiving more than twice as many ads as the lowest treatment group. By keeping consistent treatmentassignment for 21 months, we are able to measure long-run demand effects, with three times as muchad-load sensitivity as we would have obtained if we had run a month-long experiment. We estimatea demand curve that is strikingly linear, with the number of hours listened decreasing linearly in thenumber of ads per hour (also known as the price of ad-supported listening). We also show the negativeimpact on the number of days listened and on the probability of listening at all in the final month. Us-ing an experimental design that separately varies the number of commercial interruptions per hour andthe number of ads per commercial interruption, we find that neither makes much difference to listenersbeyond their impact on the total number of ads per hour. Lastly, we find that increased ad load causesa significant increase in the number of paid ad-free subscriptions to Pandora, particularly among olderlisteners.