Recherche avancée

Céline Bonnet, James Hilger et Sofia B. Villas-Boas

vol. 47, n° 5, décembre 2020, p. 1668–1696

Alberto Micheletti, Graeme D. Ruxton et Andy Gardner

vol. 2, n° e7, 2020, 15 pages

Hervé Guyomard, Cécile Détang-Dessendre, C. Brennetot, Vincent Chatellier, Luc Delaby, Pierre Dupraz, A. Gohin, Sylvain Pellerin, Jean-Louis Peyraud, Vincent Réquillart, Bertrand Schmitt et Louis-Georges Soler

n° 372, 2020, p. 11–30

Cet article propose une analyse de plusieurs aspects des propositions législatives pour la PAC de l’après 2020 présentées par la Commission européenne le 1er juin 2018. La première section, de nature transversale, aborde les questions des objectifs de la future PAC et de leur déclinaison en...

Jonathan Stieglitz, Paul L. Hooper, Benjamin C. Trumble, Hillard Kaplan et Michael Gurven

vol. 9, n° e62883, décembre 2020

In comparative cross-species perspective, humans experience unique physical impairments with potentially large consequences. Quantifying the burden of impairment in subsistence populations is critical for understanding selection pressures underlying strategies that minimize risk of production...

Aditya Goenka et Manh-Hung Nguyen

décembre 2020, p. 90–98

We prove the existence of competitive equilibrium in the canonical optimal growth model with elastic labor supply under general conditions. In this model, strong conditions to rule out corner solutions are often not well justied. We show using a separation argument that there exist Lagrange...

Doh-Shin Jeon et Jun Yan

n° 20-1171, décembre 2020, révision avril 2022

This paper studies how newspapers’ adoption of Google’s Accelerated Mobile Pages (AMP), which is a publishing format that enables instant loading of web pages in mobile browsers, changes data allocation and thereby newspapers’ incentive to invest in quality journalism when consumer data are used...

James K. Hammitt

vol. 61, décembre 2020, p. 129–154

In evaluating the appropriate response to the COVID-19 pandemic, a key parameter is the rate of substitution between wealth and mortality risk, conventionally summarized as the value per statistical life (VSL). For the United States, VSL is estimated as approximately $10 million, which implies the...

Laurent Miclo

vol. 25, 2020, p. 1–64

Markov intertwining is an important tool in stochastic processes: it enables to prove equalities in law, to assess convergence to equilibrium in a probabilistic way, to relate apparently distinct random models or to make links with wave equations, see Carmona, Petit and Yor [8], Aldous and Diaconis...

Marion Desquilbet, Laurence Gaume, Manuela Grippa, Régis Céréghino, Jean-François Humbert, Jean-Marc Bonmatin, Pierre-André Cornillon, Dirk Maes, Hans Van Dyck et David Goulson

vol. 370, n° 6523, décembre 2020, p. eabd8947

Van Klink et al. (Reports, 24 April 2020, p. 417) argue for a more nuanced view of insect decline, and of human responsibility for this decline, than previously suggested. However, shortcomings in data selection and methodology raise questions about their conclusions on trends and drivers. We call...

Boris Van Leeuwen, Paul Smeets, Jeanne Bovet, Gideon Nave, Jonathan Stieglitz et Andrew Whitehouse

vol. 287, n° 1941, décembre 2020

Economic preferences may be shaped by exposure to sex hormones around birth. Prior studies of economic preferences and numerous other phenotypic characteristics use digit ratios (2D : 4D), a purported proxy for prenatal testosterone exposure, whose validity has recently been questioned. We use...