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   2345篇
  免费   56篇
财政金融   359篇
工业经济   120篇
计划管理   353篇
经济学   636篇
综合类   58篇
运输经济   16篇
旅游经济   22篇
贸易经济   366篇
农业经济   163篇
经济概况   307篇
邮电经济   1篇
  2021年   16篇
  2020年   32篇
  2019年   46篇
  2018年   68篇
  2017年   78篇
  2016年   65篇
  2015年   31篇
  2014年   63篇
  2013年   235篇
  2012年   76篇
  2011年   104篇
  2010年   80篇
  2009年   83篇
  2008年   79篇
  2007年   67篇
  2006年   55篇
  2005年   48篇
  2004年   46篇
  2003年   35篇
  2002年   39篇
  2001年   31篇
  2000年   43篇
  1999年   31篇
  1998年   34篇
  1997年   31篇
  1996年   30篇
  1995年   18篇
  1994年   30篇
  1993年   34篇
  1992年   37篇
  1991年   29篇
  1990年   30篇
  1989年   21篇
  1988年   25篇
  1987年   22篇
  1986年   18篇
  1985年   36篇
  1984年   35篇
  1983年   37篇
  1982年   29篇
  1981年   36篇
  1980年   27篇
  1979年   29篇
  1978年   28篇
  1977年   20篇
  1976年   21篇
  1975年   22篇
  1974年   16篇
  1973年   27篇
  1972年   16篇
排序方式: 共有2401条查询结果,搜索用时 750 毫秒
21.
This paper describes the results of a mail survey to the educator membership of the American Marketing Association. Data were collected regarding beliefs about both the frequency of occurrence and severity of 59 ethical issues facing marketing faculty. The research questions examined include: What unethical practices are believed to most commonly occur? What practices are most severe? How do these beliefs vary by faculty rank and size and type of school? Implications for both the improvement of marketing education and for future research are provided.  相似文献   
22.
Corporate social responsibility and marketing: An integrative framework   总被引:5,自引:0,他引:5  
This article introduces a conceptualization of corporate social responsibility (CSR) that emphasizes the role and potential contribution of the marketing discipline. The proposed framework first depicts CSR initiatives as the actions undertaken to display conformity to both organizational and stakeholder norms. Then, the article discusses the managerial processes needed to monitor, meet, and even exceed, stakeholder norms. Finally, the analysis explains how CSR initiatives can generate increased stakeholder support. Isabelle Maignan (imaignan@feweb.vu.nl) is an assistant professor of marketing at the Vrije Universiteit in Amsterdam in the Netherlands. Her research focuses on corporate social responsibility and its marketing dimensions in an international setting. Her work has appeared in theJournal of the Academy of Marketing Science, theJournal of International Business Studies, theJournal of Business Research, theJournal of Advertising, among other journals and conference proceedings. O. C. Ferrell (oc.ferrell@colostate.edu) is chair and a professor of marketing at Colorado State University. His research focuses on marketing ethics and corporate social responsibility. His work has appeared in theJournal of Marketing, theJournal of Marketing Research, theJournal of the Academy of Marketing Science, theJournal of Public Policy and Marketing, as well as other leading journals. In addition, he is the coauthor ofMarketing: Concepts and Strategies, Business Ethics: Ethical Decision Making and Cases, Business and Society: A Strategic Approach to Corporate Citizenship, Marketing Strategy, and other textbooks.  相似文献   
23.
For the purpose of equipping researchers in marketing with a more sophisticated method to measure alienation in a marketing context, the authors have constructed and initially tested an alienation from the marketplace index. Alienation is defined in terms of Melvin Seeman's (1959) five basic variants of alienation: powerlessness, meaninglessness, normlessness, social isolation, and self-estrangement. After pretesting, two questions per variant of alienation remained as the operational measures of alienation from the marketplace. These questions focused specifically on marketing phenomenon. Test-retest reliability was tested with 35 paired observations. Validity was checked with survey data from 140 households. In terms of face or content validity, the questions met the criterion of “looking as if” they should indicate the corresponding dimensions of alienation. Correlations between the marketplace alienation items and a measure of general alienation established concurrent validity. The authors propose that the use of the marketplace alienation index in studies involving those who are affected by our country's business climate may prove useful. For example, one would hypothesize that increasing alienation from the marketplace would be associated with support of consumerist goals, or even of additional government legislation to control problems that the individual feels is uncontrollable by him because of the bigness and indifference of modern day enterprise. Pepsico, Inc.  相似文献   
24.
The impact of demographic aging and changes in the age structure on local government expenditures for social services in Norway is analyzed and projected. "To model the production of the local government sector, we have developed a macro model which reflects the coverage of different services according to demographic characteristics and standards defined as man-hours per client.... The results of a simulation show that demographic changes are of minor importance for local government expenditures in most sectors when compared to changes in standard and coverage rates....Results [also] indicate that a shift in standards and coverages in different client sectors would have rather important effects on the Norwegian economy."  相似文献   
25.
Health policy decisions are made in an uneven manner, eluding attempts to explain developments with a coherent theory. Numerous explanations have been suggested to explain individual policy actions, but recently Feldstein has attempted a broader formulation. This Self-Interest Model of Health Policy, however, assumes full knowledge of a policy's benefits and costs. This is an unrealistic assumption, and the model is unable to explain important decisions that have been made in three areas: insurance for long-term care, universal access, and efficiency incentives. This article presents a broader, more powerful formulation of the Feldstein model, specifically incorporating public ignorance as a policy determinant. The vital role of education and health policy research is underscored.  相似文献   
26.
We build on our earlier model of money in which bank liabilities circulate as a medium of exchange. We investigate optimal bank behavior and the resulting provision of liquidity under a range of central bank regulations. In our model, banks issue inside money under fractional reserves, facing the possibility of excess redemptions. Banks consider the float resulting from money creation and make reserve‐management decisions that affect aggregate liquidity conditions. Numerical examples demonstrate positive bank failure rates when returns to banking are low. Central bank interventions may improve banks' returns and welfare through a reduction in bank failure.  相似文献   
27.
We compare different contingent valuation question formats with each other and with observed behaviour for a non-monetary estimation task, the expected number of kilometers travelled by automobile. Open-ended questions, open-ended follow-up questions, dichotomous choice (DC) questions, and double-bound DC questions are included. The single and double-bound DC questions result in an estimated mean about twice as high as the actual value and the open-ended mean. The DC question overestimation seems to be due to an anchoring effect leading to yea-saying behaviour. Our results about the difference between DC questions and open-ended questions is consistent with the pattern observed in contingent valuations studies of the willingness to pay. Our results indicates that DC questions seem to be associated with a general overestimation problem that is present even for simple non-monetary estimation tasks.  相似文献   
28.
We analyze how the market processes a signaling event by studying a sample of self-tender offers, events often viewed as signals of firm value. By examining changes in the degree of informed trading, we find asymmetric information costs fall at announcement, remain low throughout the event, and increase at offer expiration. By one month following expiration, informed trading returns to a level not significantly different from that prior to the offer. Higher risk firms have significantly larger declines in information asymmetry during the offer. Increases in information asymmetry persist one month following expiration for firms with lower pre-offer informed trading. (JEL G14, G32)  相似文献   
29.
Using a small empirical model of inflation, output, and money estimated on U.S. data, we compare the relative performance of monetary targeting and inflation targeting. The results show monetary targeting to be quite inefficient, yielding both higher inflation and output variability. This is true even with a nonstochastic money demand formulation. Our results are also robust to using a P∗ model of inflation. Therefore, in these popular frameworks, there is no support for the prominent role given to money growth in the Eurosystem's monetary policy strategy.  相似文献   
30.
Background: Validation of overall survival (OS) extrapolations of immune-checkpoint inhibitors (ICIs) during the National Institute for Health and Care Excellence (NICE) Single Technology Assessment (STA) process is limited due to data still maturing at the time of submission. Inaccurate extrapolation may lead to inappropriate decision-making. The availability of more mature trial data facilitates a retrospective analysis of the plausibility and validity of initial extrapolations. This study compares these extrapolations to subsequently available longer-term data.

Methods: A systematic search of completed NICE appraisals of ICIs from March 2000 to December 2017 was performed. A targeted search was also undertaken to procure published OS data from the pivotal clinical trials for each identified STA made available post-submission to NICE. Initial Kaplan-Meier curves and associated extrapolations from NICE documentation were extracted to compare the accuracy of OS projections versus the most mature data.

Results: The review identified 11 STAs, of which 10 provided OS data upon submission to NICE. The extrapolations undertaken considered parametric or piecewise survival models. Additional data cut-offs provided a mean of 18 months of OS beyond the end of the original data. Initial extrapolations typically under-estimated OS from the most mature data cut-off by 0.4–2.7%, depending on the choice of assessment method and use of the manufacturer- or ERG-preferred extrapolation.

Conclusion: Long-term extrapolation of OS is required for NICE STAs based on initial immature OS data. The results of this study demonstrate that the initial OS extrapolations employed by manufacturers and ERGs generally predicted OS reasonably well when compared to more mature data (when available), although on average they appeared to underestimate OS. This review and validation shows that, while the choice of OS extrapolation is uncertain, the methods adopted are generally aligned with later-published follow-up data and appear appropriate for informing HTA decisions.  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