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   510篇
  免费   27篇
财政金融   118篇
工业经济   102篇
计划管理   65篇
经济学   94篇
综合类   21篇
运输经济   3篇
旅游经济   5篇
贸易经济   95篇
农业经济   29篇
经济概况   5篇
  2020年   9篇
  2019年   12篇
  2018年   10篇
  2017年   13篇
  2016年   10篇
  2015年   13篇
  2014年   9篇
  2013年   57篇
  2012年   13篇
  2011年   11篇
  2010年   8篇
  2009年   18篇
  2008年   14篇
  2007年   19篇
  2006年   15篇
  2005年   12篇
  2004年   16篇
  2003年   18篇
  2002年   20篇
  2001年   16篇
  2000年   17篇
  1999年   15篇
  1998年   10篇
  1997年   20篇
  1996年   7篇
  1995年   9篇
  1994年   9篇
  1993年   6篇
  1992年   9篇
  1991年   10篇
  1990年   5篇
  1988年   11篇
  1987年   10篇
  1986年   5篇
  1985年   6篇
  1984年   11篇
  1983年   2篇
  1982年   3篇
  1981年   4篇
  1980年   10篇
  1979年   4篇
  1978年   5篇
  1977年   5篇
  1976年   5篇
  1975年   2篇
  1974年   4篇
  1973年   2篇
  1972年   3篇
  1971年   3篇
  1946年   2篇
排序方式: 共有537条查询结果,搜索用时 18 毫秒
1.
Aims: Depression is the most frequent comorbidity reported among patients with rheumatoid arthritis (RA). Comorbid depression negatively impacts RA patients’ health-related quality-of-life, physical function, mental function, mortality, and experience of pain and symptom severity. The objective of this study was to assess healthcare utilization, expenditures, and work productivity among patients with RA with or without depression.

Materials and methods: Data from adult patients who had at least two visits each related to RA and depression over a 1-year period were extracted from the Truven Health MarketScan research databases. Outcomes comprised healthcare resource utilization, work productivity loss, and direct healthcare costs comparing patients with RA with depression (n?=?3,478) vs patients with RA without depression (n?=?43,222).

Results: Patients with RA and depression had a significantly greater relative risk of hospitalization and number of all-cause and RA-related hospitalizations, utilization of emergency services, days spent in the hospital, physician visits, and RA-related surgeries compared with RA patients without depression. Patients with RA and depression had a higher risk of and experienced more events and days of short-term disability compared with patients without depression. The incremental adjusted annual all-cause and RA-related direct costs were $8,488 (95% CI = $6,793–$10,223) and $578 (95% CI = –$98–$1,243), respectively, when comparing patients with RA and depression vs RA only.

Limitations: The current analysis is subject to the known limitations of retrospective studies based on administrative claims data.

Conclusions: This study suggested increased healthcare utilization, work productivity loss, and economic burden among RA patients due to comorbid depression. These findings emphasize the importance of managing depression and including depression as a factor when devising treatment algorithms for patients with RA.  相似文献   
2.
ABSTRACT

The traditional literature regarding social entrepreneurship does not question the political dimension. On the contrary, it tends to de-politicize societal issues. A growing number of researchers underline how this perspective cannot address the complexity and the dialogical nature of social entrepreneurship. However, while there may be a case for incorporating a political perspective, there is currently no conceptual framework to systematically inform an empirical exploration of the role played by the political vision of entrepreneurs. In this paper, we use the concept of political ideology to offer a solid framework to show how politics can shape social entrepreneurs’ motivations. More precisely we identify three political profiles – anti-statist, reformist and neoliberal – which shape the motives to engage in social entrepreneurship. We take an embedded case study approach of 17 social entrepreneurs involved in a social innovation boot camp and reveal the existence of both, left and right-wing approaches in social entrepreneurship.  相似文献   
3.
Abstract:

Although welfare reform has not been one of the most highly visible policy agendas for the Trump administration, restricting access to public assistance programs has been a part of proposals and actions in a number of areas. The Trump administration’s overall approach to welfare reform was articulated formally in 2018 in an Executive Order and a Council of Economic Advisers Report. To provide some context for a discussion of these two documents, the article begins with a discussion of the different meanings of “welfare reform” identified in institutionalist literature, and a brief overview of some important findings on the impacts of the 1996 welfare reform. It then highlights some key aspects of the Trump administration’s approach to welfare reform and responses from the poverty research and advocacy community.  相似文献   
4.
Scholars have theorized that congenital health endowment is an important determinant of economic outcomes later in a person's life. Field, Robles, and Torero (2009, American Economic Journal: Applied Economics 1, 140–169) find large increases in educational attainment caused by a reduction of fetal iodine deficiency following a set of iodine supplementation programs in Tanzania. We revisit the Tanzanian iodine programs with a narrow and wide replication of the study by Field et al. We are able to exactly replicate the original results. We find, however, that the findings are sensitive to alternative specification choices and sample restrictions. We try to address some of these concerns in the wide replication; we increase the sample size fourfold, and we improve the precision of the treatment variable by incorporating new institutional and medical insights. Despite the improvements, no effect is found. We conclude that the available data do not provide sufficient power to detect a possible effect, as treatment assignment cannot be measured with sufficient precision.  相似文献   
5.
6.
This study examines the presence and roles of female directors of U.S. Fortune 500 firms, focusing on committee assignments and director background. Prior work from almost two decades ago concludes that there is a systematic bias against females in assignment to top board committees. Examining a recent data set with a logistic regression model that controls for director and firm characteristics, director resource-dependence roles and interaction between director gender and director characteristics, we find that female directors are less likely than male directors to sit on executive committees and more likely than male directors to sit on public affairs committees. There is little if any evidence of systematic gender bias in director assignment to other board committees. We find some evidence that boards evaluate resource dependence differently for women than men. Craig A. Peterson Western Michigan University, Grand Rapios, MI 49503, USA Craig A. Peterson is associate professor of finance at Western Michigan University, Grand Rapids Regional Center. In addition to corporate governance, his research interests include investment management and corporate finance. James Philpot is assistant professor of finance and general business at Missouri State University. His research interests include corporate governance, financial planning and financial education.  相似文献   
7.
This study attempts to identify differences in the perceptions of top management (defined as CEOs, directors, and presidents) and employees (defined as middle and supervisory management) regarding (a) the effects of dependent care responsibilities on job performance, and (b) the extent of a firm's responsibility in providing support for those faced with caring needs concerning eldercare, childcare, substance abuse, and mental/physical handicaps. The results indicate that these two groups have significantly different perceptions of the effect of dependent care responsibilities on job performance, and on the firm's responsibility in providing support for three types of dependent care.  相似文献   
8.
The authors explored undergraduate business students’ feelings and thoughts about themselves, other students, and their professors when mobile devices are used in the lecture hall for nonacademic purposes. Specifically, they investigated mobile device use during class time, and whether students support it, are indifferent toward it, or consider it to be an intrusion. Using the critical incident technique, the authors thematically categorized students’ thoughts and feelings regarding mobile device usage in the classroom for nonacademic purposes. The results uncovered unique perspectives presented by the students that carry implications for students, professors and administrators.  相似文献   
9.
10.
Terms, such as “out-of-stock,” “sold out,” and “unavailable” are commonly used by retailers to communicate a product or brand outage. Although these terms are technically equivalent, prior research on product outage and product scarcity suggest that they may be interpreted and processed differently by consumers. The present research investigated whether the manner in which a product outage was framed elicited different consumer behavioral intentions, attributions, and perceptions in the context of online retailing. Data were collected by means of an online experiment. The experiment incorporated a hypothetical scenario approach in which research participants were asked to react to a particular combination of treatment and blocking factors. Results demonstrated that ceteris paribus, framing a product or brand outage as “sold out” produces fewer negative product and website reactions than does framing it as “out-of-stock” or “unavailable.”  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