Migrating Gender Inequalities? Immigrant Women's Participation in Political Survey Research

This study examines the participation of immigrant women in political surveys in Canada as a form of political participation. Investigating immigrant women's participation in the various components of the Canadian Election Studies, this study highlights the structuring impact of pre‐migration experiences with gender inequalities from two different perspectives. The larger the gender inequalities in immigrant women's country of origin, the lower their retention rate to the post‐election surveys, and the greater their propensity to provide non‐responses to political survey‐items. This study contributes to a better understanding of immigrant political integration and the related impact of pre‐migration experiences.     

Maximum likelihood drift estimation for a threshold diffusion

We study the maximum likelihood estimator of the drift parameters of a stochastic differential equation, with both drift and diffusion coefficients constant on the positive and negative axis, yet discontinuous at zero. This threshold diffusion is called drifted oscillating Brownian motion. For this continuously observed diffusion, the maximum likelihood estimator coincides with a quasi-likelihood estimator with constant diffusion term. We show that this estimator is the limit, as observations become dense in time, of the (quasi)-maximum likelihood estimator based on discrete observations. In long time, the asymptotic behaviors of the positive and negative occupation times rule the ones of the estimators. Differently from most known results of the literature, we do not restrict ourselves to the ergodic framework: indeed, depending on the signs of the drift, the process may be ergodic, transient, or null recurrent. For each regime, we establish whether or not the estimators are consistent; if they are, we prove the convergence in long time of the properly rescaled difference of the estimators towards a normal or mixed normal distribution. These theoretical results are backed by numerical simulations.     

Sampling Strategies for Evaluating the Rate of Adventitious Transgene Presence in Non‐Genetically Modified Crop Fields

According to E.U. regulations, the maximum allowable rate of adventitious transgene presence in non‐genetically modified (GM) crops is 0.9%. We compared four sampling methods for the detection of transgenic material in agricultural non‐GM maize fields: random sampling, stratified sampling, random sampling + ratio reweighting, random sampling + regression reweighting. Random sampling involves simply sampling maize grains from different locations selected at random from the field concerned. The stratified and reweighting sampling methods make use of an auxiliary variable corresponding to the output of a gene‐flow model (a zero‐inflated Poisson model) simulating cross‐pollination as a function of wind speed, wind direction, and distance to the closest GM maize field. With the stratified sampling method, an auxiliary variable is used to define several strata with contrasting transgene presence rates, and grains are then sampled at random from each stratum. With the two methods involving reweighting, grains are first sampled at random from various locations within the field, and the observations are then reweighted according to the auxiliary variable. Data collected from three maize fields were used to compare the four sampling methods, and the results were used to determine the extent to which transgene presence rate estimation was improved by the use of stratified and reweighting sampling methods. We found that transgene rate estimates were more accurate and that substantially smaller samples could be used with sampling strategies based on an auxiliary variable derived from a gene‐flow model.     

Introduction

Abstract

“What impact has city life on the individual–our behavior, personality, values, relationships?” George Simmel's 1905 publication of “The metropolis and mental life” remains a seminal essay on this central yet neglected question which we now term “urban psychology.” The centenary of Simmel's essay in 2005 is an apt time to take stock of the history and current status of urban psychology, with a special issue of this journal gathering data-based articles on diverse aspects of urban psychology. This four-part article (a) summarizes Simmel's 1905 essay, (b) comments on the dramatic population trends since 1905, (c) elaborates on 10 remarkable points about urban psychology, past and present, and (d) previews the five urban pychology reports in this special issue.     

Relations sociales et ajustements à la crise: une analyse microstatistique comparative franco‐britannique

Dans cette étude comparative sur la France et la Grande‐Bretagne, les auteurs analysent les liens entre relations professionnelles et ajustements (des effectifs et des salaires) face à la crise de 2007–2008, en s'appuyant sur deux enquêtes au niveau des établissements, fortement comparables, l'une britannique (WERS), l'autre française (REPONSE), collectées en 2010–2012. Malgré des contextes différents (composition du tissu productif, temporalité et impact de la crise), les liens entre relations sociales et stratégies d'ajustement semblent proches (la présence syndicale ne suffisant pas à empêcher les ajustements). La différenciation des systèmes de relations professionnelles ne permet donc pas d'expliquer les divergences de modes d'ajustement constatées au niveau macroéconomique.     

De la vigne à la rue : la difficile mobilisation des petits viticulteurs dans le département de l’Aude

The European Commission's specialized services are trying to tighten their grip over viticulture by invoking the legitimating figure of a “new consumer”. Accordingly, growers who work small vineyards are unable to make a wine adapted to market trends. They should, therefore, withdraw from wine-growing and enjoy the subsidies granted by the EU for uprooting vineyards. In Aude Department, southern France, small wine-growers take issue with this analysis, which, in their opinion, caves in to the pressure exerted by traders and hypermarket chain stores. However, there have been no protest actions against the Commission's decisions. This can be explained by the way the EU's policy is embedded in national and local conflicts. Although we cannot point to any joint plan, administrations, trade associations and political parties are developing practices that prevent organized protests.     

Sub‐Saharan African Cotton Policies in Retrospect

Calls for liberalising cash‐crop sectors in sub‐Saharan Africa have been voiced for decades, yet the impact of reforms remains elusive in empirical studies. This article offers new opportunities for solving this problem by creating precise and consistent market organisation indices for 25 African cotton markets from 1961 to 2008. The aggregation of scores reveals interesting trends: markets are no more competitive today than in the late 1990s, 50% of production still originates from markets with fixed prices and reforms are giving rise to a new type of regulated market in both East and West Africa.     

Impaired Self-Awareness in Pathological Gamblers

Lack of self-awareness of one’s decisions remains an understudied and elusive topic in the addiction literature. The present study aimed at taking a first step towards addressing this difficult subject through the use of a combination of behavioral procedures. Here, we explored the association between a metacognitive process (the ability to reflect and evaluate the awareness of one’s own decision) and poor performance on the Iowa Gambling Task (IGT) in a group of pathological gamblers (PG; n = 30), and in a comparison group (n = 35). This metacognitive process was assessed during the IGT with the post-decision wagering procedure, while a number of potential confounds (i.e., reward/loss sensitivity, dual-tasking) were controlled for. Results showed that: (1) Initial performance enhancement of the control group on IGT occurred without explicit knowledge of the task, thus confirming its implicit character; (2) compared to controls, performance of PG on the IGT failed to increase during the task; (3) taking into account increased reward sensitivity and decreased loss sensitivity as well as poorer dual-tasking in pathological gamblers, PG tended to exhibit a bias in evaluating their own performance on the IGT by maximizing their wagers independently of selecting advantageous decks. Our findings suggest that biased metacognition may affect pathological gamblers, leading to disadvantageous post-decision wagering, which is in turn linked to impaired decision making under ambiguity. Perhaps this deficit reflects the impaired insight and self-awareness that many addicts suffer from, thus providing a novel approach for capturing and measuring this impairment, and for investigating its possible causes.     

Active aging and pension reform: The gender implications in France

In the first section of this article, the authors Christel Gilles and Antoine Parent, argue that in France, public policy and the pension system provide financial incentives favoring early retirement. The implementation of “bridge jobs” to facilitate the transition from full employment to full retirement, could, in theory, lessen the long-term decline in employment rates of men and women. Gilles and Parent, in the second section, question the idea that rising labor force participation rates among women are adequate to narrow pension inequalities between men and women. Regarding this point, we also note that since women's careers are generally shorter than men's and their labor income remains, on average, lower, an increase, in female labor force participation would lead, in an occupational-based system, to a substitution effect between direct and indirect entitlements. The impact of this effect on pension gender inequalities remains uncertain. In the third section, the authors examine, from a gender perspective, other pension reform options that may, in theory, provide greater gender equality, but that are, in practice, far from the implementation phase.