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61.
This article reports results of a field experiment in which two hundred e-mails were sent to authors of recent articles in economics that had promised to send the interested reader supplementary material, such as alternative econometric specifications, “upon request.” The e-mails were sent either by a researcher affiliated at Columbia University, New York or the University of Warsaw, Poland; furthermore, the authors' position (assistant professor) was specified in half the e-mails only. Overall, 64% of the approached authors responded to our message, of which two thirds (44% of the entire sample) delivered the requested materials. The frequency and speed of responding and delivering were very weakly affected by the position and affiliation of the sender. Gender or affiliation of the author, number of citations or journal impact factor or the type of object in question seemed to make no difference. However, authors of published articles were much more likely to share than authors of working papers.  相似文献   
62.
This article reviews and analyzes disability rights conceptualization and policy as reflected in the Israeli media after the enactment of the Equal Rights for Persons with Disabilities Law of 1998. Media coverage is examined through review of studies conducted on the subject in Israel. A comprehensive review of the research literature reveals a discrepancy between the purposes of anti‐discrimination legislation and policy and media reflections of disability, in which portrayal is primarily via a deviance lens. The discussion is based on the analysis of universal genesis of negative perceptions of disability, as well as on particularized culture bound meaning of disability within the Israeli symbolic framework.  相似文献   
63.
In the current study, a curvilinear association was examined between differential parenting and children's social understanding as measured using standardized assessments and behavioral observations. Social understanding was comprised of theory‐of‐mind and behavior indicating understanding of others’ minds (i.e., cognitive sensitivity and internal state talk and reasoning during sibling interactions). Data came from a community sample of 372 children (51.6% males; M age = 5.57, SD = 0.77), their younger siblings (M age = 3.14, SD = 0.27), and their mothers who were observed in their homes. We hypothesized that in families with higher levels of differential parenting, both favored and disfavored older siblings would display poorer social understanding, but that disfavored children would be more negatively impacted. Results from a hierarchical regression analysis indicated an inverse linear effect, rather than a curvilinear relationship, between being favored by mother and siblings’ social understanding. Specifically, disfavored older children showed higher levels of social understanding when interacting with their favored younger sibling. This relationship remained significant after controlling for variables such as age, SES, and language. Findings suggest that differential parenting plays a role in children's ability to understand others.  相似文献   
64.
Demographic studies of mortality often emphasize the two ends of the lifespan, focusing on the declining hazard after birth or the increasing risk of death at older ages. We call attention to the intervening phase, when humans are least vulnerable to the force of mortality, and consider its features in both evolutionary and historical perspectives. We define this quiescent phase (Q-phase) formally, estimate its bounds using life tables for Swedish cohorts born between 1800 and 1920, and describe changes in the morphology of the Q-phase. We show that for cohorts aging during Sweden’s demographic and epidemiological transitions, the Q-phase became longer and more pronounced, reflecting the retreat of infections and maternal mortality as key causes of death. These changes revealed an underlying hazard trajectory that remains relatively low and constant during the prime ages for reproduction and investment in both personal capital and relationships with others. Our characterization of the Q-phase highlights it as a unique, dynamic, and historically contingent cohort feature, whose increased visibility was made possible by the rapid pace of survival improvements in the nineteenth and twentieth centuries. This visibility may be reduced or sustained under subsequent demographic regimes.  相似文献   
65.
Morality is a prominent guide of both action and perception. We argue that non-emotional gestures can prime the abstract concept of honesty. Four studies demonstrated that the emblematic gesture associated with honesty (putting a hand on one’s heart) increased the level of honesty perceived by others, and increased the honesty shown in one’s own behavior. Target persons performing this gesture were described in terms associated with honesty, and appeared more trustworthy to others than when the same targets were photographed with a control gesture. Persons performing the hand-over-heart gesture provided more honest assessments of others’ attractiveness, and refrained from cheating, as compared to persons performing neutral gestures. These findings suggest that bodily experience associated with abstract concepts can influence both one’s perceptions of others, and one’s own complex actions. Further, our findings suggest that this influence is not mediated by changes in affective states.  相似文献   
66.
67.
A statistical model is said to be an order‐restricted statistical model when its parameter takes its values in a closed convex cone C of the Euclidean space. In recent years, order‐restricted likelihood ratio tests and maximum likelihood estimators have been criticized on the grounds that they may violate a cone order monotonicity (COM) property, and hence reverse the cone order induced by C. The authors argue here that these reversals occur only in the case that C is an obtuse cone, and that in this case COM is an inappropriate requirement for likelihood‐based estimates and tests. They conclude that these procedures thus remain perfectly reasonable procedures for order‐restricted inference.  相似文献   
68.
Researchers and policymakers frequently debate about the integration of immigrants into the US economy. These debates are often based on limited data that do not capture the diversity of immigrants who arrived in the later twentieth century. Related research has also struggled to incorporate the experience of short‐term immigrants or immigrants who move in and out of the labor force. Using records from the Social Security Administration, we track the complete cohort of foreign‐born men who received social security numbers in 1978 through their subsequent working years and characterize their earning trajectories. We find that the share of foreign‐born men with low earnings declined over time, mainly due to attrition from the formal labor force. We also show, for the first time, that immigrants’ employment and earning histories vary considerably by their countries of origin: while those from several countries in Asia and Africa experienced substantial earnings growth and tended to stay in the United States for the long term, men from Central America and the Caribbean experienced more stagnation and had high levels of temporary and permanent attrition from the formal labor force. We end by discussing the historical contingencies and socioeconomic contexts—in sending countries and the United States—that shaped these trajectories.  相似文献   
69.
Public debates about both immigration policy and social safety net programs are increasingly contentious. However, little research has explored differences in health within America’s diverse population of foreign-born workers, and the effect of these workers on public benefit programs is not well understood. We investigate differences in work disability by nativity and origins and describe the mix of health problems associated with receiving Social Security Disability Insurance benefits. Our analysis draws on two large national data sources—the American Community Survey and comprehensive administrative records from the Social Security Administration—to determine the prevalence and incidence of work disability between 2001 and 2010. In sharp contrast to prior research, we find that foreign-born adults are substantially less likely than native-born Americans to report work disability, to be insured for work disability benefits, and to apply for those benefits. Overall and across origins, the foreign-born also have a lower incidence of disability benefit award. Persons from Africa, Northern Europe, Canada, and parts of Asia have the lowest work disability benefit prevalence rates among the foreign-born; persons from Southern Europe, Western Europe, the former Soviet Union, and the Caribbean have the highest rates.  相似文献   
70.
The massive rise in intra-European Union (EU) mobility in recent decades has spawned several important social and cultural phenomena that are still not covered by academic research. Social remittances – the transfer of ideas, practices, codes of behaviours, values and norms between the place of origin and destination are an important aspect of social change and modernity and they are still to be explored and documented. However, not all migrants acquire, transfer and implement them in the same way. Ongoing acts of resistance, imitation and innovation are involved, so that some migrants become ‘ordinary agents of change’ in their local microcosms, while others may contest that change. Tracing these processes in a transnational perspective through a three-year transnational multi-sited qualitative longitudinal research, this article offers an in-depth look at the consequences of human mobility within the enlarged EU.  相似文献   
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