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.     

战略决策时的失真和欺骗

“委托-代理”问题导致决策失真和欺骗，并会对组织产生毁灭性影响     

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.     

La norme ISO 45001 et les controverses autour de la régulation transnationale privée de la sécurité et de la santé au travail

Les auteurs analysent la genèse de la norme ISO 45001 sur la sécurité et la santé au travail, une initiative de régulation transnationale privée. Ils décrivent les controverses qui ont surgi à cette occasion, en se fondant sur des entretiens avec des personnes associées à l'élaboration, l'approbation et la diffusion initiale du texte, ainsi que sur une analyse qualitative des documents internes au comité chargé de sa finalisation. À l'instar de normes précédentes sur l'environnement – ISO 14001 – et la responsabilité sociale des entreprises – ISO 26000 –, ce nouvel instrument suscite de vives préoccupations, car il traite de questions politiques, sociales et juridiques déterminantes.     

Work/life balance policy in Germany: Promoting equal partnership in families

Across the OECD, public policies seek to support parents in achieving their desired work/life balance. This article introduces the background to and issues at stake in promoting equal partnerships in families in Germany. Families in Germany face considerable challenges to spending more time together and achieving a more gender‐balanced reconciliation of work and family life, as paid work hours for fathers are long on full‐time jobs and many women are in part‐time jobs. Family policy can play an important role and Germany has made substantial progress in supporting families ahead of and after the birth of a child. Important in this regard are the parental leave reforms of 2007 and 2015 and the extension of childcare supports that better enable fathers and mothers to combine work and family commitments. The article assesses recent developments in family policies in Germany while also drawing from the experiences of countries with longstanding policies to support work/life balance and strengthen gender equality.     

Computer experiments with functional inputs and scalar outputs by a norm-based approach

A framework for designing and analyzing computer experiments is presented, which is constructed for dealing with functional and scalar inputs and scalar outputs. For designing experiments with both functional and scalar inputs, a two-stage approach is suggested. The first stage consists of constructing a candidate set for each functional input. During the second stage, an optimal combination of the found candidate sets and a Latin hypercube for the scalar inputs is sought. The resulting designs can be considered to be generalizations of Latin hypercubes. Gaussian process models are explored as metamodel. The functional inputs are incorporated into the Kriging model by applying norms in order to define distances between two functional inputs. We propose the use of B-splines to make the calculation of these norms computationally feasible.     

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.     

Risk Assessment of Listeriosis Linked to the Consumption of Two Soft Cheeses Made from Raw Milk: Camembert of Normandy and Brie of Meaux

This article reports a quantitative risk assessment of human listeriosis linked to the consumption of soft cheeses made from raw milk. Risk assessment was based on data purposefully acquired inclusively over the period 2000-2001 for two French cheeses, namely: Camembert of Normandy and Brie of Meaux. Estimated Listeria monocytogenes concentration in raw milk was on average 0.8 and 0.3 cells/L, respectively, in Normandy and Brie regions. A Monte Carlo simulation was used to account for the time-temperature history of the milk and cheeses from farm to table. It was assumed that cell progeny did not spread within the solid cheese matrix (as they would be free to do in liquid broth). Interaction between pH and temperature was accounted for in the growth model. The simulated proportion of servings with no L. monocytogenes cell was 88% for Brie and 82% for Camembert. The 99th percentile of L. monocytogenes cell numbers in servings of 27 g of cheese was 131 for Brie and 77 for Camembert at the time of consumption, corresponding respectively to three and five cells of L. monocytogenes per gram. The expected number of severe listeriosis cases would be < or =10(-3) and < or =2.5 x 10(-3) per year for 17 million servings of Brie of Meaux and 480 million servings of Camembert of Normandy, respectively.