A general concept of procedural fairness for one-stage implementation

A requirement of procedural fairness is introduced and imposed on game forms. According to this axiom, everybody should be able, by varying unilaterally one`s strategy while keeping the others' strategies fixed, to produce the same set of outcomes. This axiom is called « Equality of Attainable Sets ». A necessary and sufficient condition for Nash implementability with Equality of Attainable Sets is provided under a mild domain restriction. This condition is shown to be equivalent to Nash implementability in structured models where each agent is homo oeconomicus.I thank C. d'Aspremont, S. Barbera, K. Binmore, J. Roemer, L. Gevers and an anonymous referee for their comments. The usual disclaimer applies.     

Sequential Parimutuel Betting in the Laboratory

This paper investigates parimutuel betting in the laboratory. Our experimental design relies on a simple sequential betting game where equilibrium strategies are characterized according to objective probabilities, the number of bettors, and publicly observable odds. The empirically well-documented phenomenon referred to as the favorite-longshot bias is observed in two of our three treatments. We offer a theoretical explanation of the subjects' behavior which relies on rank-dependent expected utility and pessimistic expectations about future bets.     

Managing Coopetitive Tensions at the Working‐group Level: The Rise of the Coopetitive Project Team

This study seeks to provide insights into the management of coopetitive tensions at the working‐group level. We theoretically discuss the principles of separation and integration and a combination of both to manage coopetitive tensions at this level. An in‐depth case study of a space programme conducted by two competitors ? Astrium and Thales Alenia Space ? was conducted. At the organizational level, according to the separation principle, we found that the coopetitors implemented a Coopetitive Project Team separated from the rest of their organization. At the individual level, according to the integration principle, we evidenced that project managers internalize the coopetitive paradox. At the working‐group level, we revealed a new principle, that of co‐management. The co‐management principle, in the case of dyadic coopetition, relies on the implementation of a dual, equally shared governance structure and a dual management committee. To efficiently manage coopetitive tensions, firms are combining the separation principle at the organizational level, the co‐management principle at the working‐group level and the integration principle at the individual level.     

Experimental comparison of functional and multivariate spectral-based supervised classification methods in hyperspectral image

The aim of this article is to assess and compare several statistical methods for hyperspectral image supervised classification only using the spectral dimension. Since hyperspectral profiles may be viewed either as a random vector or a random curve, we propose to confront various multivariate discriminating procedures with functional alternatives. Eight methods representing three important statistical communities (mixture models, machine learning and functional data analysis) have been applied on three hyperspectral datasets following three protocols studying the influence of size and composition of the learning sample, with or without noised labels. Besides this comparative study, this work proposes a functional extension of multinomial logit model as well as a fast computing adaptation of the nonparametric functional discrimination. As a by-product, this work provides a useful comprehensive bibliography and also supplemental material especially oriented towards practitioners.     

Energy use, population and growth, 1800�C1970

In this paper, the role of energy use is incorporated into unified growth theory. The paper presents some interesting evidence about the evolution of energy in the transition from stagnation to growth, and it subsequently develops a growth model where the observed increase in conversion efficiency in the coal energy sector is explicitly modelled and calibrated to existing data over the period 1800–1970. The quantitative analysis sheds light on the impact of energy use on the transition from stagnation to growth.     

Remittances and inequality: a dynamic migration model

We develop a model to study the effects of migration and remittances on inequality in the origin communities. While wealth inequality is shown to be monotonically reduced along the time-span, the short- and the long-run impacts on income inequality may be of opposite signs, suggesting that the dynamic relationship between migration/remittances and inequality may well be characterized by an inverse U-shaped pattern. This is consistent with the findings of the empirical literature, yet offers a different interpretation from the usually assumed migration network effects. With no need to endogenize migration costs through the role of migration networks, we generate the same results via intergenerational wealth accumulation.     

Asymptotic approximation of the likelihood of stationary determinantal point processes

Continuous determinantal point processes (DPPs) are a class of repulsive point processes on ${ℝ}^d$ with many statistical applications. Although an explicit expression of their density is known, it is too complicated to be used directly for maximum likelihood estimation. In the stationary case, an approximation using Fourier series has been suggested, but it is limited to rectangular observation windows and no theoretical results support it. In this contribution, we investigate a different way to approximate the likelihood by looking at its asymptotic behavior when the observation window grows toward ${ℝ}^d$. This new approximation is not limited to rectangular windows, is faster to compute than the previous one, does not require any tuning parameter, and some theoretical justifications are provided. It moreover provides an explicit formula for estimating the asymptotic variance of the associated estimator. The performances are assessed in a simulation study on standard parametric models on ${ℝ}^d$ and compare favorably to common alternative estimation methods for continuous DPPs.     

Facing arrhythmia. Reconstructing time in the pandemic by the metropolitan creative classes in Poland

This paper shows how the metropolitan creative classes in Poland reacted to the changes in the organization of everyday life caused by the COVID-19 pandemic, especially its temporality and rhythmicity. The pandemic and lockdowns reorganized previous ways of experiencing and managing time. Based on our empirical research and research by other scholars, we have identified some of the most common disruptions of pandemic temporality. However, a vital element of the article is to specify how the social category we studied dealt with these disruptions. In doing so, we show that the response to the breakdown of the previous order of everyday life was to restore a sense of stability actively. We were also interested in the possible, also negative consequences of the findings for the social category under study. The empirical basis for the article are in-depth interviews conducted during the fourth phase of the ongoing research project [title anonymized], which began during the first weeks of the lockdown in Poland.