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   32724篇
  免费   367篇
财政金融   6107篇
工业经济   2020篇
计划管理   5110篇
经济学   7211篇
综合类   640篇
运输经济   116篇
旅游经济   266篇
贸易经济   7011篇
农业经济   760篇
经济概况   3224篇
信息产业经济   46篇
邮电经济   580篇
  2021年   96篇
  2020年   229篇
  2019年   317篇
  2018年   2610篇
  2017年   2370篇
  2016年   1531篇
  2015年   307篇
  2014年   468篇
  2013年   1924篇
  2012年   875篇
  2011年   2429篇
  2010年   2248篇
  2009年   1976篇
  2008年   1953篇
  2007年   2232篇
  2006年   464篇
  2005年   695篇
  2004年   776篇
  2003年   860篇
  2002年   566篇
  2001年   391篇
  2000年   385篇
  1999年   334篇
  1998年   355篇
  1997年   289篇
  1996年   274篇
  1995年   241篇
  1994年   264篇
  1993年   267篇
  1992年   295篇
  1991年   290篇
  1990年   222篇
  1989年   219篇
  1988年   193篇
  1987年   193篇
  1986年   211篇
  1985年   292篇
  1984年   301篇
  1983年   280篇
  1982年   256篇
  1981年   219篇
  1980年   194篇
  1979年   191篇
  1978年   179篇
  1977年   162篇
  1976年   148篇
  1975年   166篇
  1974年   129篇
  1973年   121篇
  1972年   80篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
991.
992.
Coordination through collective bargaining is recognised as an influential determinant of labour market outcomes and macroeconomic performance. This article provides a systematic review of the empirical literature on the subject. What emerges from the review is that it is different types and coverage of bargaining coordination, rather than cross‐country variation in trade union density, that matter for economic performance. High levels of bargaining coverage tend to be associated with relatively poor economic performance, but this adverse relationship can be at least mitigated by high levels of bargaining coordination. In the absence of formal bargaining arrangements, economies often develop informal bargaining mechanisms whose effects are similar to those arising from formal bargaining provided they both operate at similar levels of coordination. The consequences of labour market coordination or absence thereof depend on the monetary policy regime as non‐accommodating monetary policy can eliminate some of the adverse unemployment consequences otherwise associated with industry‐level collective bargaining. Finally, bargaining coordination seems to matter most in times of rapid economic change rather than under more stable conditions. Overall, we conclude that it is the total ‘package’ of (formal and informal) labour market institutions that matters for the performance of the economy rather than unionisation as such or individual aspects of unionism.  相似文献   
993.
Globally, society has been facing several and growing health problems, which increased the importance of efforts towards social change. In this context, using social marketing to create and implement programs that foster behavioural change has increased in the public health community. One of the health problems that society has been facing is the unceasing need for blood products, so the subject of blood donation became an important research topic in the area of social marketing, as social marketing strategies can contribute to solving this problem. It is essential to understand the factors that motivate individuals to donate blood, to enhance the recruitment and retention of blood donors. Our study aims at evaluating the key personality factors that influence blood donation behaviour to reach a higher understanding of what concerns this global issue. The method used to analyse the data is ANOVA. We conclude that the Personality of potential donors is significantly different from the non-donors' regarding Openness to Experience and Agreeableness. These results suggest that potential donors might perceive blood donation, as well as the associated barriers, differently from non-donors. Based on our findings, we suggest some perspectives for future research in this area.  相似文献   
994.
The purpose of this paper is to present a closed formula to compute the moments of a general function from the knowledge of its bivariate survival function. The result is derived by utilizing an integration by parts formula for two variables, which is not readily available in the literature. Many of the existing results are obtained as special cases. Finally, two examples are presented to illustrate the results. In both the examples, mixed moments as well as moments for the series system and parallel system are obtained. The integration by parts formula in two variables, derived here, is of interest in its own right and we hope that it will be useful in other investigations. The integration by parts formula in two variables is derived as a special case of a general formula in n variables.  相似文献   
995.
Economic freedom, which measures the protection of property and freedom to contract, is generally argued to capture the quality of a state’s institutions regarding market activity. As to be expected, numerous studies have found that economic freedom is associated with good economic outcomes. Additionally, much effort in public economics has worked to identify the features of quality non-market public institutions. No effort has been made to connect institutions that influence market activity and institutions that govern non-market activities. We take a first step. We employ a linear programming method for measuring relative efficiencies known as Data Envelopment Analysis. We apply this technique to information on the use of inputs to the production of the prosecution of crime across the thousands of local prosecutor offices in the U.S. We then compare state-level measurements of prosecution productivity with data on state-level economic freedom from the Economic Freedom of North America index. We show that there is a positive and statistically significant relationship between the two. Those states that develop institutions respecting economic freedom also tend to be the states that develop efficient publicly-provided services. The results are extended to complementary economic freedom measurements.  相似文献   
996.
Do higher-level governments enforce austerity after bailing out indebted subnational governments or are bailouts a free lunch for the recipients? Analyzing this question empirically is difficult because bailouts are not granted randomly. This paper suggests a method to evaluate the fiscal consequences of subnational bailouts that does not rely on institutional details to obtain quasi-exogenous variation. The main idea is to combine matching and difference-in-differences designs. In a second step, I apply this method to study how bailouts affect the fiscal policy of recipient municipalities in the German federal state of Hesse. Combining disaggregated budget data with data on bailout payments over more than a decade, I find that municipalities consolidate their budgets after they receive a bailout from the state government. While this finding is specific to the German federal context, the proposed methodology can be used, due to its flexibility, to study the fiscal consequences of bailouts in various other settings.  相似文献   
997.
In this paper, we present iterative or successive approximation methods for solving the coupled Hamilton–Jacobi–Isaacs equations (HJIEs) arising in nonzero-sum differential game for affine nonlinear systems. We particularly consider the ones arising in mixed \({\mathcal H}_{2}/{\mathcal H}_{\infty }\) control. However, the approach is perfectly general and can be applied to any others including those arising in the N-player case. The convergence of the method is established under fairly mild assumptions, and examples are solved to demonstrate the utility of the method. The results are also specialized to the coupled algebraic Riccati equations arising typically in mixed \({\mathcal H}_{2}/{\mathcal H}_{\infty }\) linear control. In this case, a bound within which the optimal solution lies is established. Finally, based on the iterative approach developed, a local existence result for the solution of the coupled-HJIEs is also established.  相似文献   
998.
This essay analyzes the effects of Donald Trump’s election as President on organized labor in the United States and, more specifically, on the demographic of workers responsible for his electoral college victory. The argument is that culture rather than economics explains Trump’s success in capturing key industrial states. His support depended on white middle-aged male voters without college degrees, the same cohort that makes up the backbone of unions in the United States. The likelihood is that Trump’s policies will further immiserate the American working class rather than reinvigorate it. In three key areas, Trump’s presidency will result in lower union membership density and higher inequality of wealth. The cultural orientation of Trump’s supporters outweighed politics, policy, and competence in selecting a national leader.  相似文献   
999.
1000.
In January 2014, Northwestern University (NU) football players filed a certification election petition with the National Labor Relations Board’s (NLRB) Chicago regional office. After the NLRB ruled that they were employees having the legal right to unionize, the football players voted at the end of April 2014 with NU immediately appealing the regional director’s ruling after the balloting. In mid-August 2015, the Washington D.C. NLRB declined jurisdiction in this case, ending the football players’ unionization attempt. Because of the NLRB’s appellate ruling, however, unionization of college athletes remains a distinct possibility. Since a majority of U.S. collegiate basketball and football players are black, this paper argues that the model of unionism that should be adopted in any unionization attempt of these college athletes is civil rights unionism which represents a continuation of the historic, collective struggle of Black athletes to obtain their rights on athletic fields and in classrooms.  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