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Susanne Foitzik (Gutenberg Universität)
Toulouse : IAST, 8 novembre 2013, 11h30–12h30, salle MS001
Social insect colonies - also called superorganisms - may exhibit personalities, similar to other animals, in which individuals consistently differ in behavior. However, insect societies can not only vary in the mean, but also in the variance of a behavior. Our recent studies on ants demonstrate...
Carsten K. W. de Dreu (University of Amsterdam)
Toulouse : IAST, 7 novembre 2013, 15h30–16h30, salle MF323
Humans have a strong capacity for cooperation yet, at the same time, create and escalate conflict with often devastating consequences. Here I argue that both tendencies -- to cooperate and to aggress -- can be understood as manifestations of parochial altruism--the tendency to benefit, at a cost to...
Chao Hui Koo (University of Tilburg)
Toulouse : TSE, 7 novembre 2013, 12h45–14h00, salle MF 323
A new semiparametric time series model- the semiparametric transition model is introduced which generalizes the threshold and smooth transition models by assuming the transition function to be unknown. We propose an estimation strategy based on the nonlinear least squares, where the transition...
Wojciech Olszewski (University of Northwestern)
Toulouse : TSE, 5 novembre 2013, 11h00–12h30, salle MS 001
Search models commonly make the simplification that all the relevant information about a sampled object is revealed once it is sampled. In this paper we present and analyze a search model in which searchers have only partial information about the sampled objects at the point of decision. We show...
Silvia Goncalves (Université de Montréal)
Toulouse : TSE, 5 novembre 2013, 03h30–05h00, salle MS 001
We propose bootstrap prediction intervals for an observation h periods into the future and its conditional mean. We assume that these forecasts are made using a set of factors extracted from a large panel of variables. Because we treat these factors as latent, our forecasts depend both on estimated...
Rui Castro (Université de Montréal)
Toulouse : TSE, 4 novembre 2013, 17h00–18h30, salle MS 001
Can the educational attainment of the 1932-1972 cohorts be explained by the evo- lution of skill prices, tuition, and education expenditures? A model of investment in human capital with heterogeneous learning ability is calibrated to match the ed- ucational attainment of the 1932 and 1972 cohorts....
Markus Grasmair (University of Trondheim)
Toulouse : TSE, 4 novembre 2013, 15h00–16h00, salle MF 323
We study the application of the multi-resolution norm, which measures the maximal size of scaled local means of a function, in the problems of non-parametric regression and deconvolution. Our main result is the derivation of convergence rates for Tikhonov regularization, where we use the multi-...
Laurent Linnemer (CREST)
TSE, 4 novembre 2013, 14h00–15h30, salle MS 001
We offer an exclusionary scenario for quantity rebates and marketshare discounts offered by dominant firms, based on the upcoming introduction of a rival good in the market. We explain how the shape of the rebates depends on the incumbents’ beliefs about the characteristics of the rival good. When...
Otmar Scherzer (University of Vienna)
Toulouse : TSE, 4 novembre 2013, 14h00–15h00, salle MF 323
Optical flow is traditionally computed from a sequence of flat images. We extend the concept of optical flow to a dynamic non-Euclidean setting and introduce variational motion estimation for images that are defined on an evolving surface. We present some application to bio-imaging. This is...
Dimitris Papanikolaou (University of Northwestern)
TSE, 4 novembre 2013, 12h30–14h00, salle MF 323
Adverse selection is commonly used to explain inefficiencies in specific markets. In this paper,we incorporate an informational asymmetry into a decentralized dynamic economy and study its implications for aggregate and sector level dynamics. We show that it leads to slow moving capital, lagged...
