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191.
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Summary. We seek to explain the economic volatility of the last 6 years, in particular the rapid expansion and contraction of the knowledge sectors. Our hypothesis is that these sectors amplify the business cycle due to their increasing returns to scale, growing faster than others in an upswing and contracting faster in a downswing. To test this hypothesis we postulate a general equilibrium model with two sectors: one with increasing returns that are external to the firm and endogenously determined - the knowledge sector - and the other with constant returns to scale. We introduce a new measure of volatility of output, a real beta, and derive a resolving equation, from which we prove that the increasing return sectors exhibit more volatility then other sectors. We validate the main results on US macro economic data of real GDP by industry (2-3 digits SIC codes) of the 1977-2001 period, and provide policy conclusions.Received: 18 March 2002, Revised: 16 February 2004, JEL Classification Numbers:
D5, D58, E10, L50, L52, O38, O51.Correspondence to: Graciela Chichilnisky 相似文献
194.
在现有文献中,有关关系取向对员工满意影响的研究尚属空白.(1)通过15位服务人员的深度访谈,对关系取向的内涵进行定性探索;(2)预调查对量表的信度和效度进行评价并修改部分问项;(3)对天津连锁药店的86位店长和217位销售人员的正式问卷调查表明:关系取向、关系交换与员工满意正相关;个体文化差异对关系交换有负向影响,而对关系取向有正向影响.研究结果可以指导经理们提高上下级关系管理的有效性. 相似文献
195.
Tax incentives offered to attract firms engaged in foreign direct investment are often tied to performance requirements such as domestic content restrictions or adherence to environmental standards. The tax competition literature has repeatedly shown that competition between municipalities for mobile firms tends to drive taxes to low levels. One would expect a comparable result for burdensome performance requirements. Despite this, the evidence suggests that while taxes have indeed been driven down, performance requirements are as popular as ever. We explain this seeming conundrum by showing that in the presence of spillovers, binding performance requirements can act as a coordination device for firms. In equilibrium, municipalities choose performance requirements, which maximize joint surplus from investment. Competition between municipalities then transfers this surplus to firms via tax subsidies. 相似文献
196.
Summary. We construct an OLG model with network effects to examine skill obsolescence when individuals can choose technological vintages. In the absence of transfer payments, some regions of the parameter space have unique stationary equilibria, others have unique cyclical equilibria, and others have multiple stationary equilibria. All equilibria are Pareto efficient. However, rat race equilibria can exist in which all agents currently alive prefer a slower rate of progress than occurs in equilibrium. When contemporaneous transfers are allowed, equilibria are unique everywhere, but a cycle still exists, and a rat race can still arise in equilibrium. Allowing intertemporal transfers (debt) ensures that all equilibria are stationary. In the relevant parameter range, the introduction of debt can eliminate cycles and increase the long-run growth rate. No rat race equilibria exist when debt is allowed.Received: 3 January 2002, Revised: 3 June 2004, JEL Classification Numbers:
041, J24, O33.
Correspondence to: Ian P. KingEarly versions of this paper were presented at the West Coast Macro Workshop, the Mid-West Macro Meetings, the Canadian Macroeconomics Study Group Meetings, and the Society for Economic Dynamics Meetings. We would like to thank V. V. Chari, Merwan Engineer, Don Ferguson, John Hillas, John Knowles, Dan Peled, Dan Usher, Linda Welling and Julian Wright for helpful comments. We are especially grateful to an anonymous referee for some very useful and substantive comments. 相似文献
197.
Vijay Mahajan Herman W. Lay Chair Professor of Marketing 《Technological Forecasting and Social Change》1985,28(1):13-27
In order to assess the impact of patent infringement on the growth of a new product, a model is developed through the intervention model development processes of Box-Jenkins and Box-Tiao. Physical interpretations of model parameters and determination of associated damages suggest that the model can provide a sound basis for analyzing patent infringement disputes. 相似文献
198.
Redistribution as a selection device 总被引:1,自引:0,他引:1
Hans Peter Grüner 《Journal of Economic Theory》2003,108(2):194-216
This paper studies the role of the wealth distribution for the market selection of entrepreneurs when agents differ in talent. It argues that the redistribution of initial endowments can increase an economy's surplus because more talented individuals get credit for their risky investment projects. Moreover, the redistribution of initial endowments may lead to a Pareto-improvement although all agents are non-satiable. An agent's entrepreneurial ability is his private information and there is moral hazard in production. I find conditions such that unproductive rich entrepreneurs crowd out productive poor ones on the capital market. Then redistribution of initial endowments may lead to a new equilibrium where market participants are better informed about the entrepreneurs’ ability. The new equilibrium is characterized by (i) the selection of better entrepreneurs, (ii) a higher riskless rate of return on capital, (iii) lower repayments of successful entrepreneurs to their creditors and (iv) the fact that all agents are better off. 相似文献
199.
Shurojit Chatterji 《Economic Theory》2002,20(4):837-847
Summary. This paper provides conditions for the almost sure convergence of the least squares learning rule in a stochastic temporary
equilibrium model, where regressions are performed on the past values of the endogenous state variable. In contrast to earlier
studies, (Evans and Honkapohja, 1998; Marcent and Sargent, 1989), which were local analyses, the dynamics are studied from
a global viewpoint, which allows one to obtain an almost sure convergence result without employing projection facilities.
Received: April 7, 2001; revised version: September 5, 2001 相似文献
200.
地洼学说是由著名地质学家陈国达教授创立的。从创立至今,经过我国及其他一些国家地质工作者的长期辛勤劳动,使之日臻完善,并形成了在国内外有影响的地质科学理论。近35年的实践证明,这一理论对生产实践具有重要的指导作用。地洼学说的形成,是陈国达教授应用科学的思想方法在地质科学道路上大胆创新、不断探索的结果。地质工作所涉及的研究领域非常广泛而复杂,它更需要科学的、系统的理论来指导。我们学习和研究地洼学说的形成过程和创新精神,除了它的应用价值外,其理论意义特别是科学的思想方法也是值得我们很好学习和借鉴的。 相似文献