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   27487篇
  免费   496篇
  国内免费   15篇
财政金融   4532篇
工业经济   1883篇
计划管理   4595篇
经济学   5882篇
综合类   1570篇
运输经济   144篇
旅游经济   255篇
贸易经济   4158篇
农业经济   1218篇
经济概况   3701篇
信息产业经济   6篇
邮电经济   54篇
  2023年   135篇
  2022年   213篇
  2021年   315篇
  2020年   366篇
  2019年   365篇
  2018年   1015篇
  2017年   1125篇
  2016年   748篇
  2015年   401篇
  2014年   566篇
  2013年   1834篇
  2012年   1163篇
  2011年   2075篇
  2010年   1839篇
  2009年   1429篇
  2008年   1490篇
  2007年   1555篇
  2006年   942篇
  2005年   943篇
  2004年   582篇
  2003年   596篇
  2002年   494篇
  2001年   439篇
  2000年   401篇
  1999年   293篇
  1998年   290篇
  1997年   292篇
  1996年   255篇
  1995年   236篇
  1994年   246篇
  1993年   292篇
  1992年   264篇
  1991年   243篇
  1990年   223篇
  1989年   192篇
  1988年   178篇
  1987年   173篇
  1986年   189篇
  1985年   242篇
  1984年   304篇
  1983年   254篇
  1982年   244篇
  1981年   261篇
  1980年   233篇
  1979年   240篇
  1978年   198篇
  1977年   188篇
  1976年   169篇
  1975年   136篇
  1974年   138篇
排序方式: 共有10000条查询结果,搜索用时 750 毫秒
991.
In this paper, we empirically assess the importance of regional and sector-specific determinants of industry dynamics. To this aim we test three hypotheses (originally proposed by Shapiro and Khemani (1987, Int J Indust Organ 5:15–26)) for the relationship between the entry and exit of firms: independence, symmetry and simultaneity. Estimates from a panel data system of equations seem to confirm the simultaneity hypothesis for Spain, i.e. we find evidence of a displacement (replacement) effect between the gross rate of entry (exit) and the gross rate of exit (entry). Also, our results show that, irrespective of the hypothesis we use, both sectorial and regional variables affect entry and exit.
M. ManjónEmail:
  相似文献   
992.
This paper updates and extends the time-series evidence on the convergence of international incomes using a set of 29 countries over the period 1900–2001. Time-series tests for stochastic convergence are supplemented with tests which provide evidence on the notion of “β-convergence” predicted by the Solow model. The evidence indicates that the relative income series of 21 countries are consistent with stochastic convergence, and that β-convergence has occurred in at least 16 countries at some point during the twentieth century. Further examination of the properties of the β-convergence test provides anecdotal evidence of conditional convergence in three additional countries for which the convergence hypothesis was initially rejected. Consideration of convergence clubs strengthens the evidence in favor of convergence. Analysis of the cross-country dispersion of incomes over time also suggests that convergence has occurred over the 1900–2001 period, particularly within certain clubs, with structural breaks associated with World War II in many countries causing a break in the convergence process.   相似文献   
993.
金融发展中的制度因素:理论框架与国际经验   总被引:1,自引:0,他引:1  
本文在现有文献的基础上,提出了"制度与金融发展"这一新的理论命题,并利用跨国截面数据系统地检验了该理论.从国际经验来看,产权结构、法律制度和金融利益集团力量都对金融发展有显著的影响.本文的结论是:只有进一步完善产权、法律以及信用等制度才能推动中国金融进一步发展.  相似文献   
994.
The macroeconomics of the labor market: three fundamental views   总被引:2,自引:0,他引:2  
We distinguish and assess three fundamental views of the labor market regarding the movements in unemployment: (1) the frictionless equilibrium view; (2) the chain reaction theory, or prolonged adjustment view; and (3) the hysteresis view. While the frictionless view implies a clear compartmentalization between the short- and long-run, the hysteresis view implies that all the short-run fluctuations automatically turn into long-run changes in the unemployment rate. We assert the problems faced by these conceptions in explaining the diversity of labor market experiences across the OECD labor markets. We argue that the prolonged adjustment view can overcome these problems since it implies that the short, medium, and long-runs are interrelated, merging with one another along an intertemporal continuum.
Dennis J. SnowerEmail: URL: http://www.uni-kiel.de/snower/
  相似文献   
995.
The idea that changes in Supreme Court decision rules should have measurable effects on the volume of cases litigated has a compelling plausibility, and several models of litigation predict this result. The prediction is a fragile one, however, because it implies very restrictive assumptions about the probability distributions of the cases subject to dispute. The period studied includes four Supreme Court decisions widely regarded as changing the rules and altering the level of uncertainty surrounding the legality of the anti-tying provisions of the antitrust laws. Broad trends in antitrust activity generally and changes in firm profitability statistically explain over three-quarters of the observed variation in tying litigation. Changes in legal precedent have only modest effects upon litigation.
Carson W. BaysEmail:
  相似文献   
996.
人民币实际汇率变动对我国进出口贸易影响:1997-2006   总被引:4,自引:0,他引:4  
徐明东 《财经科学》2007,(5):110-117
本文选取1997-2006年的月度数据,运用VAR方法,考虑了FDI存量和我国加工贸易特征的影响后,对贸易收支与人民币实际汇率变动关系进行了动态分析,并得出如下结论:人民币实际有效汇率的变动显著影响了我国贸易收支;短期内J曲线效应存在,时滞约为5个月;汇率变动对进出口贸易影响的同向性明显;我国贸易收支的收入效应大于价格效应等.  相似文献   
997.
Using data from the 2001 Giving and Volunteering in the United States survey, I examine household charitable donations to environmental organizations. Household income has a positive impact on environmental giving. While the tax price affects overall charitable contributions, it does not affect environmental giving. More education, being female, homeownership, and voting are also associated with a greater likelihood of contributing to the environment. African-Americans and Latinos are less likely to contribute to the environment, although conditional on giving, Latinos give more. Retired persons and households with children are less likely to contribute to the environment. Larger households give less to the environment. Households from the Northeast are the most likely to make environmental contributions while households from the South are the least likely.
Debra K. IsraelEmail:
  相似文献   
998.
This paper proposes that customers often respond to brand extension concepts by visualizing the product. We call this process spontaneous visualization and suggest that it precedes concept evaluations. In two studies, we show that spontaneous visualization is enhanced by the fit between the parent brand and the extension category and by the ease with which the product category can be imagined. The appeal of the visualized image in turn determines whether visualization enhances or decreases concept evaluations. In addition, we find a stronger link between product evaluations and delayed choice when evaluations are based on visualization; evaluations based on visualization hence appear to be more “valid” in the sense of predicting subsequent behavior. Implications of these findings and ideas for future research are discussed.
Donald R. LehmannEmail:
  相似文献   
999.
Prior empirical research suggests that consumers perceive pioneers as more prototypical (i.e., representative) of their product categories than me-too followers. This prototypicality advantage is believed to contribute to an enduring marketplace advantage for the pioneer. We extend research into pioneering prototypicality advantages by considering the ramifications of simultaneous product design (i.e., product attribute) evolutions. We hypothesize that the simultaneous evolution of product designs of both the pioneer and me-too will diminish the pioneer’s prototypicality advantage over the me-too, even though the me-too does not initiate the change. To test our hypotheses, we create an experimental environment consisting of four cells, each corresponding to a different marketplace scenario: a no-change condition; a simultaneous-evolution condition; a pioneer-updates-first condition; and a leapfrogging (i.e., me-too updates first) condition. The results suggest that simultaneous design evolutions can diminish the pioneer’s prototypicality advantage. As a result, me-too entry may be a more attractive strategy in the long-run than currently believed in product categories characterized by substantial design evolution.
Christopher JoinerEmail:
  相似文献   
1000.
The authors extend sales management theory by considering the role of export sales management in small- and medium-sized firms, and they develop an integrated model of export sales organization effectiveness. Specifically, the authors test 16 hypotheses that examine the relationships among export sales management control, export territory, psychic distance, export sales performance, and export sales organization effectiveness. Using a mail-survey approach, data were collected from U.K.-based export sales managers in 146 direct exporters of industrial products. Though certain anomalies are observed, the research findings support many of the hypothesized associations, confirming the robustness of existing sales management concepts and theories in an export-marketing context.
Robert E. MorganEmail:
  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