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Matthew Gentzkow
2018
Maria Dimakopoulou, Zhengyuan Zhou, Susan Athey et Guido W. Imbens
décembre 2018
Contextual bandit algorithms are sensitive to the estimation method of the outcome model as well as the exploration method used, particularly in the presence of rich heterogeneity or complex outcome models, which can lead to difficult estimation problems along the path of learning. We develop...
May Wong
Glenn Ellison
Daniel L. Chen
n° 18-88, décembre 2018
Predictive judicial analytics holds the promise of increasing the fairness of law. Much empirical work observes inconsistencies in judicial behavior. By predicting judicial decisions—with more or less accuracy depending on judicial attributes or case characteristics—machine learning offers an...
Frédérique Fève, Jean-Pierre Florens et Ingrid Van Keilegom
vol. 36, n° 2, 2018, p. 334–345
Christian Gollier
vol. 95, 2018, p. 155–171
We demonstrate that increasing the risk surrounding the variance of future consumption generates a fourth-degree risk deterioration in future consumption, yielding an increase in its excess kurtosis. Its impact on the equilibrium risk premium is thus positive if only if the fourth derivative of the...
Eric Avenel et Stéphane Caprice
vol. 69, n° 1, 2018, p. 5–28
L'article revisite la question de la soutenabilité d'une entente en présence d'une menace d'entrée dans un contexte où les firmes en place sont verticalement intégrées. Les entrants dépendent des firmes intégrées pour leurs approvisionnements. Alors que l'entrée laisse les profits de collusion...
Bénédicte Alziary Chassat et Jacqueline Fleckinger
vol. 71, 2018, p. 3–13
Combining the results of a recent paper by Fleckinger-Hernández-de Thélin for a non cooperative 2 x 2 system with the method of PhD Thesis of M. H. Lécureux we compute the sign of the solutions of a n x n non-cooperative systems when the parameter varies near the lowest principal eigenvalue of the...
Milo Bianchi
vol. 73, n° 2, 2018, p. 831–859
We match administrative panel data on portfolio choices with survey measures of financial literacy. When we control for portfolio risk, the most literate households experience 0.4% higher annual returns than the least literate households. Distinct portfolio dynamics are the key determinant of this...