Welfare, labor supply and heterogeneous preferences: evidence for Europe and the US

Following the report of the Stiglitz Commission, measuring and comparing well-being across countries has gained renewed interest. Yet, analyses that go beyond income and incorporate non-market dimensions of welfare most often rely on the assumption of identical preferences to avoid the difficulties related to interpersonal comparisons. In this paper, we suggest an international comparison based on individual welfare rankings that fully retain preference heterogeneity. Focusing on the consumption-leisure trade-off, we estimate discrete choice labor supply models using harmonized microdata for 11 European countries and the US. We retrieve preference heterogeneity within and across countries and analyze several welfare criteria which take into account that differences in income are partly due to differences in tastes. The resulting welfare rankings clearly depend on the normative treatment of preference heterogeneity with alternative metrics. We show that these differences can indeed be explained by estimated preference heterogeneity across countries—rather than demographic composition.     

Deux définitions de la collégialité et leur articulation: le cas d’un diocèse catholique

Against the background of the conflict observed between managers and professionals, two definitions of collegiality are identified: on the one hand, as a specific organizational form (bottom up) and, on the other, as a procedure of bureaucratic management (top down). A study of networks of priests in a catholic diocese in France is used to explore how these two definitions are related. Questions are raised about the effects of a too narrow organizational rationalization that uses collegiality only as a top down, bureaucratic managerial procedure. This always entails the risk of making the work done by experts sterile because it overlooks the first type of collegiality, which is based on the nature of the nonroutine tasks that members perform jointly thanks to an endogenous organizational structure of a bottom up type.     

A smallest tournament for which the Banks set and the Copeland set are disjoint

Given a tournament T, a Banks winner of T is the first vertex of any maximal (with respect to inclusion) transitive subtournament of T; a Copeland winner of T is a vertex with a maximum out-degree. In this paper, we show that 13 is the minimum number of vertices that a tournament must have so that none of its Copeland winners is a Banks winner: for any tournament with less than 13 vertices, there is always at least one vertex which is a Copeland winner and a Banks winner simultaneously. Received: 2 May 1997 / Accepted: 30 September 1997     

Nonparametric Instrumental Variable Estimation of Structural Quantile Effects

We study the asymptotic distribution of Tikhonov regularized estimation of quantile structural effects implied by a nonseparable model. The nonparametric instrumental variable estimator is based on a minimum distance principle. We show that the minimum distance problem without regularization is locally ill‐posed, and we consider penalization by the norms of the parameter and its derivatives. We derive pointwise asymptotic normality and develop a consistent estimator of the asymptotic variance. We study the small sample properties via simulation results and provide an empirical illustration of estimation of nonlinear pricing curves for telecommunications services in the United States.     

Self-organizing maps in population based metaheuristic to the dynamic vehicle routing problem

We consider the dynamic vehicle routing problem (dynamic VRP). In this problem, new customer demands are received along the day. Hence, they must be serviced at their locations by a set of vehicles in real time. The approach to address the problem is a hybrid method which manipulates the self-organizing map (SOM) neural network into a population based evolutionary algorithm. The method, called memetic SOM, illustrates how the concept of intermediate structure, also called elastic net or adaptive mesh concept, provided by the original SOM can naturally be applied into a dynamic setting. The experiments show that the heuristic outperforms the approaches that were applied to the Kilby et al. 22 problems with up to 385 customers. It performs better with respect to solution quality than the ant colony algorithm MACS-VRPTW, a genetic algorithm, and a multi-agent oriented approach, with a computation time used roughly 100 times lesser.     

EXPERT OPINION AND PRODUCT QUALITY: EVIDENCE FROM NEW YORK CITY RESTAURANTS

We analyze whether consumers' quality perception and/or producer investment of New York City restaurants, measured by Zagat scores, responds to newly appearing expert opinion, measured by Michelin scores. Answering this question is of general economic interest as it applies to all markets with information asymmetries. Employing a difference‐in‐differences approach as well as a propensity score matching approach we find significant Michelin treatment effects on food and décor quality. Based on these changes, we find a Michelin‐induced price increase of approximately 30% per Michelin star. To examine whether the improved food and nonfood quality is based on restaurant investments or is merely imagined, we analyze nonfood investments by referring to Wine Spectator wine list awards. Our analysis suggests that Michelin‐reviewed restaurants are significantly more likely to invest in their wine list than others. As a result, Michelin reviewed restaurants are more likely to improve food and nonfood (esp. décor) quality leading to significant price increases. However, while restaurants that increase prices only due to décor and service improvements are more likely to go out of business, food improvements appear to secure a restaurant's survival. (JEL D11, L15, L66)     

Issues of educational support in primary school and secondary education in disadvantaged suburbs in France

From a critical sociological perspective, this article advances the debate between global schooling with political incentives and local meanings with localized educational practices and supports. It focuses on the role of education policies in the pursuit of social inclusion and social justice, but also shows how local actors adapt and experiment in managing the socio-cultural diversity of the students and the school contexts. First, I show the issues of educational support policies in the French context with a historical background and their re-appropriation by local actors. Second, I present the theoretical framework of my research (2008 to 2013), the methodology and initial results. Last, I analyze the main qualitative results of my comparative research in order to highlight ‘good’ or ‘bad’ educational support practices according to various criteria, starting with interactional socio-cultural posture between different actors.     

La construction des inégalités hommes-femmes dans l'entreprise. Une analyse de cas dans la métallurgie

Under the 1983 and 2001 laws on equality at the workplace, firms in France must submit to the works council a report “comparing the situations of men and women”. This report lays the groundwork for collective bargaining and remedial actions. Since this comparison is a snapshot at a year's interval from the previous report, it does not shed light on differences in occupational trajectories and opportunities; and it even risks masking the inequality between men and women. In contrast with the legally required report, a longitudinal analysis of data collected during a case study in a large metal-working firm shows that inequality has a long life and might be thriving. The company abides by the law but in an effort, it is hypothesized, not so much to reduce inequality between the sexes as to avoid lawsuits and prosecution.     

Minimizing Skin Color Differences Does Not Eliminate the Own-Race Recognition Advantage in Infants

An abundance of experience with own-race faces and limited to no experience with other-race faces has been associated with better recognition memory for own-race faces in infants, children, and adults. This study investigated the developmental origins of this other-race effect (ORE) by examining the role of a salient perceptual property of faces-that of skin color. Six- and 9-month-olds' recognition memory for own- and other-race faces was examined using infant-controlled habituation and visual-paired comparison at test. Infants were shown own- or other-race faces in color or with skin color cues minimized in grayscale images. Results for the color stimuli replicated previous findings that infants show an ORE in face recognition memory. Results for the grayscale stimuli showed that even when a salient perceptual cue to race, such as skin color information, is minimized, 6- to 9-month-olds, nonetheless, show an ORE in their face recognition memory. Infants' use of shape-based and configural cues for face recognition is discussed.