全文获取类型
收费全文 | 21840篇 |
免费 | 672篇 |
专业分类
财政金融 | 4577篇 |
工业经济 | 1743篇 |
计划管理 | 3529篇 |
经济学 | 4684篇 |
综合类 | 255篇 |
运输经济 | 193篇 |
旅游经济 | 381篇 |
贸易经济 | 3883篇 |
农业经济 | 854篇 |
经济概况 | 2328篇 |
信息产业经济 | 6篇 |
邮电经济 | 79篇 |
出版年
2023年 | 128篇 |
2021年 | 159篇 |
2020年 | 307篇 |
2019年 | 434篇 |
2018年 | 537篇 |
2017年 | 554篇 |
2016年 | 513篇 |
2015年 | 371篇 |
2014年 | 585篇 |
2013年 | 2492篇 |
2012年 | 676篇 |
2011年 | 799篇 |
2010年 | 740篇 |
2009年 | 790篇 |
2008年 | 710篇 |
2007年 | 621篇 |
2006年 | 574篇 |
2005年 | 533篇 |
2004年 | 495篇 |
2003年 | 505篇 |
2002年 | 492篇 |
2001年 | 457篇 |
2000年 | 452篇 |
1999年 | 462篇 |
1998年 | 424篇 |
1997年 | 409篇 |
1996年 | 338篇 |
1995年 | 322篇 |
1994年 | 354篇 |
1993年 | 346篇 |
1992年 | 365篇 |
1991年 | 344篇 |
1990年 | 264篇 |
1989年 | 245篇 |
1988年 | 229篇 |
1987年 | 227篇 |
1986年 | 232篇 |
1985年 | 342篇 |
1984年 | 336篇 |
1983年 | 319篇 |
1982年 | 295篇 |
1981年 | 257篇 |
1980年 | 236篇 |
1979年 | 230篇 |
1978年 | 211篇 |
1977年 | 189篇 |
1976年 | 174篇 |
1975年 | 156篇 |
1974年 | 127篇 |
1973年 | 119篇 |
排序方式: 共有10000条查询结果,搜索用时 390 毫秒
211.
Michael Kevane 《Land use policy》1997,14(4):295-310
This paper reports on aspects of land tenure in western Sudan, especially the nature of tenure insecurity and the functioning of the land rental market. The active land rental market accounted for about one-third of cultivated land. Patterns of land rental transactions, and tests of the importance of insecurity in renting land, where the owner may not be able to reclaim land rented out, do not support the presumption that rental markets perform poorly. The role of the sheikh as administrator of village land, and the claims of large landowners to vast tracts, are, however, important political problems that must be resolved before attempts at ‘rationalizing’ land tenure. 相似文献
212.
I had known Manohar Rao for a long time. For many years I tried to lure him to join the Indira Gandhi Institute of Development Research. He always gave me his disarming smile but his loyalty to Bombay University and to his students was unshakable. He was deeply interested in improving tools for better policy analysis. Hence in this paper I raise some related issues.
相似文献213.
Annuity Values in Defined Contribution Retirement Systems: Australia and Singapore Compared 总被引:1,自引:0,他引:1
Annuities promise to play an increasingly important role in countries with national defined contribution retirement systems. In this article we examine life annuities in two countries, Singapore and Australia, each of which has a national mandatory pension program. Exploiting data on annuity pricing and purchase behaviour, we compare the money's worth of life annuity products across these two nations. Our results indicate that, after controlling on administrative loadings, there are important differences in measured adverse selection. Part of the explanation may be due to the different structures of the two countries’retirement systems. 相似文献
214.
Gregory S. Amacher Erkki Koskela Markku Ollikainen 《Bulletin of economic research》2005,57(4):391-405
We use a vertical product differentiation model under partial market coverage to study the social welfare optimum and duopoly equilibrium when convex costs of quality provision are either fixed or variable in terms of production. We show the following new results. First, under fixed costs, the social planner charges a uniform price for the single variant that just covers costs of quality provision. Like the duopoly equilibrium, this socially optimal pricing entails a partially uncovered market, but a smaller share of the market is served compared with the duopoly equilibrium. Second, for the variable cost case, it is socially optimal to provide both high‐ and low‐quality variants, but market shares need not be equal. This differs from the result in fully covered markets. Third, in the duopoly equilibrium, the quality spread is too wide under variable costs relative to the social optimum. Under fixed costs, the duopoly produces two variants, but quality is too low relative to the social optimum, which has only one variant. 相似文献
215.
Abstract: The dwindling nature of overseas development assistance in the early part of the 1990s called for the establishment of capital markets in some African countries, including Ghana, with the view to increasing foreign direct investments and achieving sustainable inflows, growth and development. One important factor which affects the determination of prices and the growth of capital markets is macroeconomic risk which is quite high in developing countries. Following works done on advanced stock markets, this study seeks to investigate the impact of six macroeconomic risk factors on asset pricing in the various industrial classification — financial, manufacturing, food and beverages, distribution and mining under the Ghana Stock Exchange (GSE) for the period January 1997 to December 2002. Using the arbitrage pricing methodology developed by Ross (1976) and Chen et al. (1986) , the study revealed that investors in Ghana considered three main macroeconomic risk factors — short‐term interest rate risk, inflation risk and the term structure of the country's interest rate in the determination of the various industrial asset prices during the period under consideration. Analysis of the risks and returns profile of the industries also shows that financial assets made the best gains on the market. Both general and specific policy recommendations aimed at improving the performance of the GSE are explored. 相似文献
216.
217.
Michael Schröder 《Financial Markets and Portfolio Management》2004,18(2):122-142
218.
219.
Michael Hubbard 《Food Policy》1995,20(6)
This paper outlines the conditions under which contracting of different types succeeds in the provision of public services to agriculture. It observes that performance contracting has been widely attempted in adjusting countries but generally with little success, since it is demanding of resources, flexibility and motivation in government under conditions where these are scarce. Examples are drawn from agricultural marketing. Given the largely private nature of the services to agriculture currently provided by the state, the long-term reform strategy should be market development. Contracting out and management contracting may have a role in this strategy, particularly in better managed adjusting economies. 相似文献
220.
Michael H. Morris Amy S. Marks Jeffrey A. Allen Newman S. Peery Jr. 《Journal of Business Ethics》1996,15(10):1119-1130
This study explores the impact of environmental turbulence on relationships between personal and organizational characteristics, personal values, ethical perceptions, and behavioral intentions. A causal model is tested using data obtained from a national sample of marketing research professionals in South Africa. The findings suggest turbulent conditions lead professionals to report stronger values and ethical norms, but less ethical behavioral intentions. Implications are drawn for organizations confronting growing turbulence in their external environments. A number of suggestions are made for ongoing research.
Michael H. Morris became the Fletcher Jones Chair in Entrepreneurship at the University of the Pacific, Stockton, CA in 1993. He received his Ph.D. in Marketing. He is the author of two books and over forty articles in academic journals, including the Journal of International Business Studies, the Journal of Business Research, the Journal of Management, and the Journal of the Academy of Marketing Science. Dr. Morris' principal research interests include entrepreneurial behavior, industrial marketing strategy, and pricing.Amy Seidel Marks has been a Senior Lecturer in Marketing at the GSB UCT since 1989. She holds a Ph.D. in Marketing from the Kellogg Graduate School of Management, and has worked in the areas of consumer behavior analysis and social marketing for 20 years. During her time in South Africa she has conducted numerous research projects in areas such as AIDS prevention, tobacco control and iodine deficiency, and has also served as a consultant to national projects in tuberculosis drug compliance, tobacco control and adult education.Jeff Allen received his doctorate from the University of Kentucky. He is currently an Assistant Professor of Marketing at the University of Central Florida, Orlando, Florida, Dr. Allen has published in various national and international academic journals on topics of social responsibility, marketing ethics, and health care marketing.
Newman S. Perry, Jr. is Professor of Management, School of Business and Public Administration at the University of the Pacific in Stockton California. He has just completed Business, Government, and Society: Managing Competitiveness, Ethics, and Social Issues published by Prentice-Hall and previously coauthored a book on strategic management. 相似文献