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   13710篇
  免费   303篇
  国内免费   13篇
财政金融   2400篇
工业经济   1053篇
计划管理   2276篇
经济学   2940篇
综合类   299篇
运输经济   91篇
旅游经济   277篇
贸易经济   2468篇
农业经济   741篇
经济概况   1458篇
邮电经济   23篇
  2021年   84篇
  2020年   147篇
  2019年   221篇
  2018年   285篇
  2017年   311篇
  2016年   292篇
  2015年   205篇
  2014年   318篇
  2013年   1311篇
  2012年   360篇
  2011年   384篇
  2010年   374篇
  2009年   394篇
  2008年   446篇
  2007年   425篇
  2006年   341篇
  2005年   333篇
  2004年   293篇
  2003年   301篇
  2002年   279篇
  2001年   273篇
  2000年   276篇
  1999年   247篇
  1998年   256篇
  1997年   260篇
  1996年   261篇
  1995年   236篇
  1994年   226篇
  1993年   249篇
  1992年   236篇
  1991年   227篇
  1990年   212篇
  1989年   183篇
  1988年   145篇
  1987年   175篇
  1986年   176篇
  1985年   260篇
  1984年   270篇
  1983年   264篇
  1982年   233篇
  1981年   234篇
  1980年   198篇
  1979年   210篇
  1978年   153篇
  1977年   158篇
  1976年   137篇
  1975年   108篇
  1974年   103篇
  1973年   93篇
  1972年   67篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
31.
A study of the location of three classifications of high-tech industries in rural areas was undertaken using ordinary least squares, Tobit, and a two-step estimation procedure suggested by Heckman (1976). The results indicate that the location decision for high tech firms is influenced primarily by the county population, adjacency to an SMSA, and the expenditures on public infrastructure (exclusive of education expenditures). However, location near interstate highways was generally not a significant factor. Results were similar between branch and unit (single ownership) plants. Some differences in signs of orders of magnitude occurred among the estimation procedures. Making a choice between Tobit and Heckman approaches depends upon the goal of the research.  相似文献   
32.
Among the economies with a Currency Board System (CBS), Hong Kong (HK) is probably the one with the largest and most developed financial sector, as well as the highest capital mobility. Hence, studying HK’s CBS is not only crucial to HK, but also important for the understanding of the modern CBS. This paper outlines the major monetary reforms in HK since the late 1980s. The impacts of these reforms and the 1997–1998 Asian Financial Crisis are then examined empirically. We focus on the differentials between the US and HK interbank interest rates. We assume the conditional-mean equation follows an autoregressive process and the conditional-variance equation follows a generalized autoregressive conditional heteroscedasticity process. This model captures the time-varying level and volatility of the differential. In light of the empirical results we provide an assessment of the reforms in HK.  相似文献   
33.
Optimal investment rules are developed for a producer agency investing in domestic-market generic advertising, export market promotion, and cost-of-production-reducing research. These rules are derived assuming either maximization of producers' surplus or social surplus. The form of the optimality rules differs according to which objective is pursued. Fixed producer agency budgets are also allowed by incorporating a constraint limiting total expenditure on the three activities. Addition of such a constraint substantially alters the structure of the optimal investment rules. Differences in these rules highlight the importance of accounting for the financing mechanism when modeling optimal checkoff fund investment decisions. Optimality rules are simulated using data for the Canadian beef sector. Results suggest historic underinvestment in domestic-market generic advertising but overinvestment in export market promotion. Sensitivity of simulation results underscores the difficulty in assessing optimality of historic producer investment in cost-of-production-reducing research.  相似文献   
34.
35.
36.
Tort reform of the motor accident insurance compensation scheme in the Australian state of New South Wales in 1999 came about as a result of an untested experiment in regulatory negotiation. This article is a first-hand account of the successful attempt to craft a consensual modification of the scheme through deliberations among a working group of service provider representatives. The author, a Canadian lawyer, investigated the prospects for change, acted as chief negotiator, and observed the legislative process that led to the final law reform.  相似文献   
37.
38.
This paper presents the development andvalidation of new measurement tools to exploreself-efficacy toward service and toward civicparticipation. We developed and administereda survey to 851 students in an AACSB-accreditedcollege of business at a comprehensive publicuniversity located in the Midwest. Traditionalscale development methodologies plusconfirmatory factor analysis and simultaneousfactor analysis in several populations wereused to analyze both a primary sample and aholdback sample. Results strongly support thevalidity and reliability of the surveyinstrument. Future use for the instrumentincludes verification of the effectiveness ofpedagogies designed to increase self-efficacytoward service and motivation for civicparticipation in business students.  相似文献   
39.
More ethics research needs to explore the global differences in ethical evaluations. This study explored the relationships among nationality, teleological evaluations, ethical judgments, and ethical intentions using a sample of 222 American and Spanish business professionals. The path analysis indicated that teleological evaluations were related to ethical judgments and that both ethical judgments and teleological evaluations were related to ethical intentions. Executive nationality was related to teleological evaluations and ethical intentions with American individuals having higher teleological assessments and intentions to act ethically than the Spanish individuals. These findings have implications for global companies, which are presented along with the study's limitations and future research suggestions.  相似文献   
40.
THE SQUARED ORNSTEIN-UHLENBECK MARKET   总被引:2,自引:0,他引:2  
We study a complete market containing J assets, each asset contributing to the production of a single commodity at a rate that is a solution to the squared Ornstein-Uhlenbeck (Cox-Ingersoll-Ross) SDE. The assets are owned by K agents with CRRA utility functions, who follow feasible consumption/investment regimes so as to maximize their expected time-additive utility from consumption. We compute the equilibrium for this economy and determine the state-price density process from market clearing. Reducing to a single (representative) agent, and exploiting the relation between the squared-OU and squared-Bessel SDEs, we obtain closed-form expressions for the values of bonds, assets, and options on the total asset value. Typical model parameters are estimated by fitting bond price data, and we use these parameters to price the assets and options numerically. Implications for the total asset price itself as a diffusion are discussed. We also estimate implied volatility surfaces for options and bond yields.  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