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   30539篇
  免费   614篇
财政金融   5560篇
工业经济   2254篇
计划管理   5148篇
经济学   6885篇
综合类   330篇
运输经济   200篇
旅游经济   539篇
贸易经济   4729篇
农业经济   1464篇
经济概况   3973篇
邮电经济   71篇
  2021年   188篇
  2020年   307篇
  2019年   418篇
  2018年   592篇
  2017年   590篇
  2016年   554篇
  2015年   407篇
  2014年   622篇
  2013年   2947篇
  2012年   837篇
  2011年   900篇
  2010年   748篇
  2009年   865篇
  2008年   917篇
  2007年   807篇
  2006年   745篇
  2005年   695篇
  2004年   697篇
  2003年   681篇
  2002年   633篇
  2001年   629篇
  2000年   636篇
  1999年   543篇
  1998年   547篇
  1997年   524篇
  1996年   522篇
  1995年   474篇
  1994年   519篇
  1993年   512篇
  1992年   485篇
  1991年   514篇
  1990年   468篇
  1989年   388篇
  1988年   394篇
  1987年   386篇
  1986年   402篇
  1985年   576篇
  1984年   537篇
  1983年   542篇
  1982年   523篇
  1981年   445篇
  1980年   442篇
  1979年   455篇
  1978年   386篇
  1977年   346篇
  1976年   277篇
  1975年   268篇
  1974年   251篇
  1973年   241篇
  1972年   198篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
991.
Theories of financial frictions in international capital markets suggest that financial intermediaries' balance sheet constraints amplify fundamental shocks. We present empirical evidence for such theories by decomposing the U.S. dollar risk premium into components associated with macroeconomic fundamentals, and a component associated with financial intermediary balance sheets. Relative to the benchmark model with only macroeconomic state variables, balance sheets amplify the U.S. dollar risk premium. We discuss applications to financial stability monitoring.  相似文献   
992.
In recent years, there has been a growing interest in the environmental impacts of trade liberalization. This paper provides further discourse in this area with a study on Indonesia and its trade agreements with Japan (IJEPA) and ASEAN (AFTA). A static global CGE model, known as the Global Trade Analysis Project, was used to project the Indonesian economy to the year 2022, with and without tariff reforms agreed under the agreements. Environmental impacts are assessed using different pollution indicators—air, water and waste. The study suggests that Indonesia would grow rapidly over the period considered with a large deterioration in its environment. Following these, however, the agreements only have a marginal positive impact on Indonesia's output but with a noticeable increase in trade flows and signs of trade diversion. Overall AFTA has a greater impact on the Indonesian economy compared to IJEPA. Similarly, the impact of trade liberalization on the environment is marginal. On the whole, tariff reform is inducing air pollution and reducing water pollution. In conclusion, the study suggests that Indonesia's participation in the AFTA and IJEPA agreements is not likely to bring drastic changes to her economic and environmental performance.  相似文献   
993.
This study analyzes the dynamic characteristics of staffing employment across different business sectors and across different geographical regions in The Netherlands. We analyze a micro data set of the market leader of the Dutch staffing employment market, i.e. Randstad. We apply the dynamic factor model to extract common information out of a large data set and to isolate business cycle frequencies with the aim of forecasting staffing and total employment. We identify regions and sectors whose cyclical developments lead the staffing labor cycle at the country level. The dynamic factor model exploits these leading characteristics at the disaggregate level to forecast the country aggregate. Finally, both dynamic and static factors turn out to be predictive summary statistics of the micro data set when employed to forecast total employment at the country level.  相似文献   
994.
Standard target zone exchange rate models are based on nonlinear functions of unobserved economic fundamentals, which are assumed to be bounded, similarly to the target zone exchange rates themselves. Using a novel estimation and testing strategy, I show how this key but often overlooked assumption may be tested. Empirical results cast doubt on its validity in practice, providing a reason for well-documented empirical difficulties of these models in the literature.  相似文献   
995.
996.
Murphy J 《Nursing economic$》2011,29(6):339-341
National Health IT Week, which ran from September 11-16, 2011, served as a time to highlight the importance of efficient information systems that protect the privacy and security of personal health information while improving the delivery of health care in the United States. During the week, the health IT community came together to raise national awareness regarding the consistent breakthroughs and hard work industry professionals, providers, and consumers have put forward to ensure they are moving toward the common goal of advancing the future of health care through private and secure health IT. Two events during the week (the Consumer Health IT Summit and the launch of the HealthlT.gov web site) brought home a theme increasingly seen as important to improving our health care system--patients participation in their care. Nurses will need to work with patients so they understand the importance of their participation as a partner in their care, instead of playing a passive role. One way we can do that is to encourage our patients to actively use technology to manage their own health care and to share information with their health care providers.  相似文献   
997.
Terry AJ  Whitman MV 《Nursing economic$》2011,29(5):252-6, 264
The challenges posed by the economic downturn on baccalaureate nursing schools in the southeast as it relates to their perceptions of changes in the number of applicants, acceptance rates, employer recruitment efforts, and student clinical and job placement were explored. Responses from deans and program directors indicated nursing schools are experiencing negative effects of the economic downturn in the form of graduates having difficulty finding employment, decreased recruitment efforts from prospective employers, difficulty locating clinical placements for students, and no change in faculty applicants despite an increase in undergraduate student applicants as well as graduate student applicants. These multiple factors combined could signal the death knell for programs that are ill-prepared to deal with such a crisis. Programs need to be aggressive in their efforts to draw health care recruiters as well as qualified faculty applicants to their campuses. Nursing schools must be able to clearly show why their graduates are superior to other programs' graduates when competing for both highly qualified faculty applicants and prospective student employers.  相似文献   
998.
In recent debates on environmental problems and policies, the strategy of “degrowth” has appeared as an alternative to the paradigm of economic growth. This new notion is critically evaluated by considering five common interpretations of it. One conclusion is that these multiple interpretations make it an ambiguous and rather confusing concept. Another is that degrowth may not be an effective, let alone an efficient strategy to reduce environmental pressure. It is subsequently argued that “a-growth,” i.e. being indifferent about growth, is a more logical social aim to substitute for the current goal of economic growth, given that GDP (per capita) is a very imperfect indicator of social welfare. In addition, focusing ex ante on public policy is considered to be a strategy which ultimately is more likely to obtain the necessary democratic-political support than an ex ante, explicit degrowth strategy. In line with this, a policy package is proposed which consists of six elements, some of which relate to concerns raised by degrowth supporters.  相似文献   
999.
Trust is frequently a requirement for economic exchanges and the management of natural resources. Providing public information on past actions can promote trust through the formation of reputations. We developed an economic experiment to test whether a formal reputation mechanism could facilitate trusting relationships in the tradable grazing rights markets. Providing information to create formal public reputations for market participants did not increase the overall efficiency of the market. However, it did result in greater equality of income between partners, suggesting that participants showed more concern for their partners when they knew they would be rated. Even with public reputation information, bilateral relationships remained central to the market. Market failures in existing grazing rights markets may be better addressed by measures to increase communication between partners rather than simply relying on a formal reputation mechanism.  相似文献   
1000.
Migratory species support ecosystem process and function in multiple areas, establishing ecological linkages between their different habitats. As they travel, migratory species also provide ecosystem services to people in many different locations. Previous research suggests there may be spatial mismatches between locations where humans use services and the ecosystems that produce them. This occurs with migratory species, between the areas that most support the species' population viability - and hence their long-term ability to provide services - and the locations where species provide the most ecosystem services. This paper presents a conceptual framework for estimating how much a particular location supports the provision of ecosystem services in other locations, and for estimating the extent to which local benefits are dependent upon other locations. We also describe a method for estimating the net payment, or subsidy, owed by or to a location that balances benefits received and support provided by locations throughout the migratory range of multiple species. The ability to quantify these spatial subsidies could provide a foundation for the establishment of markets that incentivize cross-jurisdictional cooperative management of migratory species. It could also provide a mechanism for resolving conflicts over the sustainable and equitable allocation of exploited migratory species.  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