首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   26篇
  免费   0篇
管理学   2篇
人口学   1篇
丛书文集   1篇
理论方法论   4篇
社会学   17篇
统计学   1篇
  2021年   1篇
  2020年   2篇
  2018年   3篇
  2016年   1篇
  2014年   1篇
  2013年   2篇
  2011年   1篇
  2009年   2篇
  2007年   2篇
  2006年   1篇
  2005年   3篇
  2004年   3篇
  2003年   1篇
  2000年   1篇
  1995年   1篇
  1990年   1篇
排序方式: 共有26条查询结果,搜索用时 533 毫秒
1.
Although immigrants to the United States earn less at entry than their native-born counterparts, an extensive literature has found that immigrants have faster earnings growth that results in rapid convergence to native-born earnings. However, recent evidence based on U.S. Census data indicates a slowdown in the rate of earnings assimilation. We find that the pace of immigrant wage convergence based on recent data may be understated in the literature as a result of the method used by the census to impute missing information on earnings, which does not use immigration status as a match characteristic. Because both the share of immigrants in the workforce and earnings imputation rates have risen over time, imputation match bias for recent immigrants is more consequential than in earlier periods and may lead to an underestimate of the rate of immigrant wage convergence.  相似文献   
2.
Using a new data set consisting of a matched sample of workers and firms, and including explicit measures of match quality, the authors estimate a structural model and find new evidence of a strong positive relation between wages and tenure. Inclusion of firm-fixed effects does not significantly reduce the estimated returns to tenure. The results also shed light on the relative importance of human capital and job matching theories.  相似文献   
3.
4.
Whether highly educated women are exiting the labor force to care for their children has generated a great deal of media attention, even though academic studies find little evidence of opting out. This paper shows that female graduates of elite institutions have lower labor market involvement than their counterparts from less selective institutions. Although elite graduates are more likely to earn advanced degrees, marry at later ages, and have higher expected earnings, there is little difference in labor market activity by college selectivity among women without children and women who are not married. But the presence of children is associated with far lower labor market activity among married elite graduates. Most women eventually marry and have children, and the net effect is that labor market activity is on average lower among elite graduates than among those from less selective institutions. The largest gap in labor market activity between graduates of elite institutions and less selective institutions is among MBAs, with married mothers who are graduates of elite institutions 30 percentage points less likely to be employed full-time than graduates of less selective institutions.  相似文献   
5.
This article assesses the Fair Trade pricing model for coffee, investigating the ability of minimum prices and a social premium to reduce price risk and remedy inequalities. It highlights some of the challenges involved in controlling prices. Inequalities exist among Fair Trade‐certified farmers; some are poorer than others, and the poorer ones typically produce less coffee. If Fair Trade succeeds in its aim of raising the prices received by farmers, this will benefit more those farmers producing greater volumes of coffee and who are typically less vulnerable. In addressing inequalities, the Fair Trade social premium is superior to minimum prices.  相似文献   
6.
This study evaluated the feasibility, safety, and findings from a protocol for exercise-bicycle ergometry in subacute-stroke survivors. Of 117 eligible candidates, 14 could not perform the test and 3 discontinued because of cardiac safety criteria. In the 100 completed tests, peak heart rate was 116 +/- 19.1 beats/min; peak VO(2) was 11.4 +/- 3.7 ml x kg x min(-1), peak METs were 3.3 +/- 0.91, exercise duration was 5.1 +/- 2.84 min, and Borg score was 14 +/- 2.6. Among 71 tests, anaerobic threshold was achieved in 3.0 +/- 1.7 min with a VO(2) of 8.6 +/- 1.7 ml x kg x min(-1). After screening, this protocol is feasible and safe in subacute-stroke survivors with mild to moderate deficits. These stroke survivors have severely limited functional exercise capacity. Research and clinical practice in stroke rehabilitation should incorporate more comprehensive evaluation and treatment of endurance limitations.  相似文献   
7.
The purpose of this preliminary study was to examine associations between leaving home to engage in bingo or gambling activity and indices of physical and mental health and social support among a representative community cohort of 1016 elderly people. Cross-sectional and longitudinal data gathered from a prospective epidemiological study in a rural, low socio-economic status, area of Pennsylvania was employed. The cohort had a mean age of 78.8 (SD = 5.1) (range 71–97) and participated in three consecutive biennial waves of data collection. Nearly half (47.7) of the cohort reported gambling. To predict gambling, the independent variables included age, sex, education, employment, social support, depressive symptoms, self-rated health, alcohol use, cigarette use, and cognitive functioning. In cross-sectional, univariate analyses, gambling was associated with younger age, sex (male), fewer years of education, greater social support, lower depression scores, better self-rated health, alcohol use in the past year, and higher cognitive functioning. In a cross-sectional multiple regression model, younger age, greater social support, and alcohol use in the past year remain strongly and independently associated with gambling activity. Longitudinally, age, sex, social support, alcohol use, and gambling are predictive of future gambling activity. The results revealed that gambling may offer a forum of social support to older adults who are often isolated as they age.  相似文献   
8.
This case study investigated how two 8th-grade teachers planned for, delivered, and reflected on their teaching of the 2016 Presidential Election. Data sources included classroom observations, teacher interviews, and lesson plans. Despite integrating student-centered lessons about the election with social and political events in US History from1792-1861, one teacher, Ms. Smith, struggled to navigate burgeoning issues that galvanized students. During the six-week unit, both teachers maintained neutral positions on the candidates; however, after the election, Ms. Smith allowed her disdain for Donald Trump to seep into her teaching. Because exigent political events, such as presidential elections, hold great potential to accelerate students' political socialization, more needs to be learned about how teachers do and should manage the teaching of controversial issues in the social classroom.  相似文献   
9.
Although the initial euphoria about Internet‐enabled reverse auctions has given way to a cautious but widespread use of reverse auctions in business‐to‐business (B2B) procurement, there is a limited understanding of the effect of auction design parameters on buyer surplus. In this paper, we study the effect of bidding competition, information asymmetry, reserve price, bid decrement, auction duration, and bidder type on buyer surplus. We collected field data on more than 700 online procurement auctions conducted by a leading auctioneer and involving procurement items worth millions of dollars. Consistent with the predictions of auction theory, the results indicate that bidding competition, reserve price, and information sharing affect buyer surplus. Unlike previous findings in the consumer‐to‐consumer context, we find that bid decrement and auction duration have no effect in B2B procurement auctions. Our results suggest that use of the rank‐bidding format increases buyer surplus when incumbent suppliers participate in the auction. We discuss the theoretical and managerial implications of these findings for future research and for optimal design of online procurement auctions.  相似文献   
10.
Using data from Current Population Survey Tobacco Use Supplements spanning 1992–2002, this study shows that smokers who plan to quit smoking are more supportive of regulations than are other smokers. Failed quitters who plan to try again are more supportive of restrictions than are smokers planning to quit for the first time. These findings indicate that many smokers support regulatory restrictions to reduce their costs of quitting by exploiting the discipline offered by regulatory control. From 1992 to 2002, support for smoking restrictions in public areas rose dramatically among both nonsmokers and smokers.JEL Classification: I180, I120, H000  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号