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Henrik Andersson, Damian Tago et Nicolas Treich
n° 14-477, mars 2014
Caspar Siegert et Robert Ulbricht
n° 14-478, mars 2014, révision janvier 2019
We explore how pricing dynamics in the European airline industry vary with competition and document patterns that are consistent with intertemporal price discrimination. First, the rate at which prices increase over time decreases in competition, supporting the idea that competition restrains the...
Jean-Pierre Amigues, Gilles Lafforgue et Michel Moreaux
n° 14-479, mars 2014
Romain Doucet, Paula Margaretic, Christine Thomas-Agnan et Quentin Villotta
n° 14-494, mars 2014
We explore the estimation of origin-destination (OD), city-pair, air passengers, in order to explicitly take into account spatial autocorrelation. To our knowledge, we are the first to test the presence of spatial autocorrelation and apply spatial econometric OD flow models to air transport....
Alexander Guembel et Oren Sussman
n° 14-498, mars 2014, révision mars 2019
We study a two-country setting in which leveraged investors generate fire-sale externalities, leading to financial crises and contagion. Governments can affect the incidence of financial crisis and the degree of contagion by injecting public liquidity and, additionally, by segmenting the countries...
Pascal Lavergne, Samuel Maistre et Valentin Patilea
n° 14-502, mars 2014
We consider testing the significance of a subset of covariates in a nonparamet- ric regression. These covariates can be continuous and/or discrete. We propose a new kernel-based test that smoothes only over the covariates appearing under the null hypothesis, so that the curse of dimensionality is...
n° 832, mars 2014
Leveraged investors may be subject to contagion when sales of repossessed collateral create a downward spiral in fire sales prices, increasing margin requirements and drying up the supply of liquidity. This raises the question whether market integration is desirable when the risk of contagion is...
Jérôme Mathis et Wilfried Sand-Zantman
collection « Rapport IDEI », n° 24, mars 2014
Pierre Dubois, Rachel Griffith et Aviv Nevo
vol. 104, n° 3, mars 2014, p. 832–867
Food purchases differ substantially across countries. We use detailed household level data from the US, France and the UK to (i) document these differences; (ii) esti- mate a demand system for food and nutrients, and (iii) simulate counterfactual choices if households faced prices and nutritional...
Pierre Dubois, Jean-Charles Rochet et Jean-Marc Schlenker
vol. 98, n° 3, mars 2014, p. 1669–1701
Using an exhaustive database on academic publications in mathematics all over the world, we study the patterns of productivity by mathematicians over the period 1984–2006. We uncover some surprising facts, such as the weakness of age related decline in productivity and the relative symmetry of...
