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Vivek Venkataraman, AK Yegian, Ian J. Wallace, N. Holowka, I. Tacey, Michael Gurven et Thomas S. Kraft
vol. 285, n° 1890, novembre 2018
The convergent evolution of the human pygmy phenotype in tropical rainforests is widely assumed to reflect adaptation in response to the distinct ecological challenges of this habitat (e.g. high levels of heat and humidity, high pathogen load, low food availability, and dense forest structure), yet...
Bryan Bollinger, Kenneth Gillingham, Gordon T. Kraft-Todd et Stefan Lamp
vol. 563, novembre 2018, p. 248
Promoting the adoption of public goods that are not yet widely accepted is particularly challenging. This is because most tools for increasing cooperation—such as reputation concerns1 and information about social norms2—are typically effective only for behaviours that are commonly practiced, or at...
Jean-Paul Azam et Véronique Thelen
vol. 24, n° 4, novembre 2018
This paper reports that the econometric findings of Azam & Thelen (2010) remain valid when the sample is extended by 10 years to cover 1990–2014 in Azam & Thelen (2018). They blame the presence of US troops in oil-exporting countries and their neighbors for increasing transnational...
Patrick Fève, Alban Moura et Olivier Pierrard
vol. 172, novembre 2018, p. 12–15
We solve a version of the analytical Real Business Cycle (RBC) model with a predetermined rate of return on household saving. The solution differs from that of the benchmark RBC model along two dimensions: (i) Policy functions depend on the variance of the technology shock. (ii) There is a...
Renato Gomes et Jean Tirole
vol. 133, n° 4, novembre 2018, p. 2097–2169
Firms often sell a basic good as well as ancillary ones. Hold-up concerns have led to ancillary good regulations such as transparency and price caps. The hold-up narrative, however, runs counter to evidence in many retail settings where ancillary good prices are set below cost (e.g. free shipping,...
Emmanuelle Auriol, Antonio Estache et Liam Wren-Lewis
vol. 69, n° 6, novembre 2018, p. 913–936
Paula Margaretic et Sébastien Pouget
vol. 58, novembre 2018, p. 340–355
This paper studies the impact of a country's extra-financial performance on its sovereign bond spreads. Sovereign bond spreads reflect both an economic default risk and a strategic default risk. We hypothesize that a country's extra-financial performance reduces default risk by signalling good...
Denis Hilton, Nicolas Treich, Gaetan Lazzara et Philippe Tendil
vol. 17, n° 1-2, novembre 2018, p. 27–38
We discuss what makes a “good” environmental nudge from the policy maker’s point of view. We first delineate what is paternalistic about environmental nudges. We then discuss the effectiveness of nudges, including their paradoxical effects on the targeted behaviour, as well as possible collateral...
Bastien Cabarrou, Patrick Sfumato, Loïc Mourey, Eve Leconte et Laurent Balardy
vol. 9, n° 103, novembre 2018, p. 102–126
Jorge Peña et Georg Nöldeke
vol. 457, novembre 2018, p. 211–220
How the size of social groups affects the evolution of cooperative behaviors is a classic question in evolutionary biology. Here we investigate group size effects in the evolutionary dynamics of games in which individuals choose whether to cooperate or defect and payoffs do not depend directly on...
