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   139964篇
  免费   3979篇
  国内免费   2篇
财政金融   26280篇
工业经济   11799篇
计划管理   22338篇
经济学   30414篇
综合类   1485篇
运输经济   999篇
旅游经济   2532篇
贸易经济   24217篇
农业经济   6245篇
经济概况   17373篇
信息产业经济   8篇
邮电经济   255篇
  2021年   873篇
  2020年   1704篇
  2019年   2514篇
  2018年   2517篇
  2017年   2686篇
  2016年   2828篇
  2015年   2170篇
  2014年   3515篇
  2013年   15692篇
  2012年   4357篇
  2011年   4382篇
  2010年   3876篇
  2009年   4524篇
  2008年   4076篇
  2007年   3400篇
  2006年   3669篇
  2005年   3643篇
  2004年   3207篇
  2003年   2967篇
  2002年   2890篇
  2001年   2742篇
  2000年   2625篇
  1999年   2543篇
  1998年   2398篇
  1997年   2426篇
  1996年   2296篇
  1995年   2076篇
  1994年   2068篇
  1993年   2020篇
  1992年   2086篇
  1991年   2009篇
  1990年   1885篇
  1989年   1701篇
  1988年   1638篇
  1987年   1653篇
  1986年   1726篇
  1985年   2496篇
  1984年   2369篇
  1983年   2161篇
  1982年   2027篇
  1981年   1949篇
  1980年   1927篇
  1979年   1857篇
  1978年   1653篇
  1977年   1632篇
  1976年   1392篇
  1975年   1285篇
  1974年   1189篇
  1973年   1190篇
  1972年   897篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
941.
If a tax on energy affects the demand for a nondurable good, the stock of a durable good, and the proportion of the energy consumption per unit of service of the durable good, an integrated approach for investigating consumer demand for durables and nondurables is required. The purpose of this paper is to employ the concept of a variable expenditure function with quasi-fixed durable goods as arguments in order to derive a demand system for nondurable goods in prices of the nondurables, in the stocks of durables, and in variable expenditure. From the envelope condition desired stocks of durables can be calculated and investment demand for durables can be determined. For an application we choose a variable expenditure function based on the almost ideal demand specification, and evaluate alternative environmental policy measures using the equivalent variation for comparing the welfare effects.  相似文献   
942.
943.
Abstract. The use of CGE models has gained much popularity among policy analysts in LDCs and there is a fast growing body of literature on this area of economics. In this survey, the advantages of general equilibrium approach over partial equilibrium approach in analysing a wide range of policy issues are highlighted. The evolution of CGE modelling is discussed and more than 60 CGE applications related to different policy issues in LDCs are surveyed. This comprehensive survey shows that the CGE models have become quite popular analytical tools among policy analysts in LDCs over the last decade or so. The debate in the economic profession regarding the value and appropriateness of using CGE models for policy analysis is examined in the final section of this paper. Some of the criticisms levelled at CGE models are discussed and it is argued that despite this criticism such models are capable of providing insight into important policy problems.  相似文献   
944.
A negative relationship between corporate leverage and tax shields has been predicted because a large nondebt tax shield reduces the expected value of interest tax savings and lessens the advantage of debt financing. Previous studies, however, have provided inconclusive and contradictory evidence on whether nondebt tax shields crowd-out debt financing. The analysis herein relies on unique constructs of discounted depreciation tax shields and presents evidence that crowding-out does not occur. Furthermore, it is shown that contradictory inferences may result from analysis of annual tax depreciation deductions instead of discounted tax shields. The findings suggest that firms with substantial cash flow from depreciation exploit their higher debt capacity by maintaining a capital structure with significantly more debt than otherwise.  相似文献   
945.
946.
This article looks, with humor, at the role of black economists in academia and in the economics profession.  相似文献   
947.
948.
Chief Executives from New Zealand's largest companies were surveyed to distinguish divesting and nondivesting companies, and to identify the relative importance of the factors and motives which led to the divestment of 208 business units in the period 1985 through 1990. The divesting companies were considerably larger and faster growing than nondivestors. The typical divestment was motivated by the need to convert unattractive assets into liquid form which could then be held to strengthen the balance sheet, or reinvested in either the core business or new areas.  相似文献   
949.
This paper examines an event study test procedure based on cumulative average residuals (CARs) and a boundary-crossing probability for Brownian motion. The boundary-crossing test procedure is designed to detect abnormal security-price performance under conditions of event-period uncertainty. Simulations with daily security-return data show that the boundary-crossing test is well specified under the null hypothesis and has good power properties under the alternative hypothesis of abnormal security-price performance distributed over an event period of uncertain length.  相似文献   
950.
The New Growth Theory and Coasean Economics: Institutions to Capture Externalities. — This paper presents the main theoretical arguments which lead many adherents of the New Growth Theory to the conclusion that externalities in research and development are important for economic growth and warrant government subsidies. In contrast, the authors point to private institutions like associations, company structures and industry clusters which can capture such externalities. An international comparison of private R&;D investment and special features of institutions in Switzerland and Japan are in line with this hypothesis. Thus, the argument for R&;D subsidies made by the New Growth Theory is considerably reduced.  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