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   19446篇
  免费   377篇
财政金融   3852篇
工业经济   1491篇
计划管理   3067篇
经济学   4204篇
综合类   227篇
运输经济   104篇
旅游经济   312篇
贸易经济   3300篇
农业经济   812篇
经济概况   2423篇
邮电经济   31篇
  2021年   135篇
  2020年   202篇
  2019年   305篇
  2018年   306篇
  2017年   333篇
  2016年   353篇
  2015年   275篇
  2014年   369篇
  2013年   1884篇
  2012年   551篇
  2011年   593篇
  2010年   516篇
  2009年   555篇
  2008年   589篇
  2007年   523篇
  2006年   507篇
  2005年   481篇
  2004年   408篇
  2003年   447篇
  2002年   423篇
  2001年   367篇
  2000年   385篇
  1999年   379篇
  1998年   371篇
  1997年   327篇
  1996年   326篇
  1995年   294篇
  1994年   297篇
  1993年   321篇
  1992年   292篇
  1991年   286篇
  1990年   251篇
  1989年   249篇
  1988年   220篇
  1987年   230篇
  1986年   221篇
  1985年   391篇
  1984年   361篇
  1983年   356篇
  1982年   288篇
  1981年   288篇
  1980年   288篇
  1979年   279篇
  1978年   242篇
  1977年   274篇
  1976年   227篇
  1975年   197篇
  1974年   170篇
  1973年   180篇
  1970年   121篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
991.
992.
Economic institutions are linked to economic growth because they create conditions favourable for production and exchange. Institutions can give a country comparative advantage in producing some goods. If its trading partners lack such institutions, it can still enjoy their benefits by importing these goods. Some institutions, such as intellectual property rights, have non‐excludable benefits because the resulting production is intangible, non‐rival, and often publicly disclosed. The profits, or surplus, that result, however, is rival. Foreign countries can ‘free ride’ on this benefit by misappropriating rival surplus through infringement. This article develops a theory of institutional free riding in which firms in one country free ride on the benefit of foreign institutions to the detriment of their competitor firms and their countries' institutions. It evaluates the incentives of firms and governments for this free riding, its effects, and potential responses to mitigate these effects.  相似文献   
993.
The National Basketball Association contracting rules provide plausibly exogenous variation in career concerns near contract end. We use this setting to study how individual career concerns affect risk‐taking behavior and can sabotage team performance. Using the frequency and duration of player injuries from 1991 to 2013 we measure individual risk‐taking behavior. We find that the average player's likelihood of missing a game due to injury falls by 0.06 percentage points (or over 100% relative to the mean injury rate) in the final 3 months of his contract, and when missing games due to injury is unavoidable, his recovery time drops by 22 days. However, “elite” players with virtually no career concerns actually miss more games due to injury. Finally, we find that elite players missing too many games and “average” players playing before healthy, combine to hurt team performance. For each additional player in the last 3 months on contract, the win probability for that team falls by over 2.6%.  相似文献   
994.
The decoupling of child Medicaid from the cash welfare system greatly increased access to public health insurance for low‐income children in the United States. In this paper, I show that the federally mandated public health insurance expansions of the late‐1980s and early‐1990s significantly increased the number of public high school completers in the 2000s. Using the legislated generosity of a state's child Medicaid program as a time‐varying, exogenous source of variation in a quasi‐experimental design, I find substantively large declines in the dropout rate and, importantly, large increases in traditional 4‐year graduation rates. Results for both measures are driven by Hispanic and White students, the two groups experiencing the greatest within‐group increases in eligibility due to the decoupling of child Medicaid from the Aid to Families with Dependent Children program. In addition, I find evidence that increases in the length of childhood years covered (e.g., through age 5 vs. through age 17) leads to greater gains in completion rates. This suggests that public health insurance coverage throughout childhood produces the largest effect. (JEL C23, H51, H52, H75, I21)  相似文献   
995.
Journal of Regulatory Economics - In Europe, gas market mergers aim at reducing restrictions on gas wholesale markets. Market mergers also allow network users to book transport capacity at...  相似文献   
996.
997.
This paper proposes a generalized spatial panel-data probit model with spatial autocorrelation of the dependent variable, the time-invariant individual shocks, and the remainder disturbances. It proposes its estimation with a Bayesian Markov chain Monte Carlo procedure. Simulation results show that the proposed estimation method performs well in small- to medium-sized samples. This method is then applied to the analysis of export-market participation of 1451 Chinese firms between 2002 and 2006 in the prefecture-level city of Wenzhou in the province of Zhejiang. Empirical results show that two of the three forms of the hypothesized spatial autocorrelation are significant, namely the spatial lag for the dependent variable and the time-invariant firm-specific shocks, but not the time-variant shocks. Ignoring any of these significant spatial effects would lead to misspecification.  相似文献   
998.
Mega‐sporting events such as the Fédération Internationale de Football Association (FIFA) World Cup are expensive affairs. Host countries often justify the spending required to stage these events by predicting that mega‐events will draw large numbers of tourists. This paper analyzes monthly foreign tourist arrivals into Brazil between 2003 and 2015 and finds that the 2014 FIFA World Cup increased foreign tourism by roughly 1 million visitors. This number far exceeded expectations, but we show that roughly a quarter of this increase in foreign tourism was caused by the fortuitous advancement of Argentina's national team, and potential hosts should not count on the event to consistently produce out‐sized tourism figures. We conclude that on‐field results can greatly influence FIFA World Cup tourism. (JEL L83, F14)  相似文献   
999.
Does honesty promote trust and trustworthiness? We investigate how being lied to (versus told the truth) in a Gneezy deception game affects behavior in a subsequent trust game with different players. Using a design that controls for potential treatment effects on payoffs, mood, and beliefs about the overall propensity for honesty in the experiment, we find that the specific experience of being lied to significantly erodes trust and trustworthiness.  相似文献   
1000.
Recent terrorist acts, in particular the 9-11 attacks in 2001, have created disruptions in the global economy. The short-term impact had been felt in the global tourism, airline industries, as well as the financial markets. While the global economy has recovered and is adjusting to the new global realities, the longer-term impact of heightened security risk across the world can be felt in the form of higher risk premiums in asset markets, as well as a shift of resources towards dealing with terrorism. Just as World War II had accelerated the development of nuclear energy as well as a major contributing factor in the genesis of Silicon Valley, the current war against terrorism will affect both the pace and trajectory of technology trends, as efforts are focused on developing technologies to combat terrorism. In this paper, we review the effects of the current war on terrorism in terms of its impact on the economy, the allocation of resources to R&D, and the trajectory of future R&D.  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