全文获取类型
收费全文 | 22673篇 |
免费 | 440篇 |
专业分类
财政金融 | 4169篇 |
工业经济 | 1707篇 |
计划管理 | 3665篇 |
经济学 | 4948篇 |
综合类 | 494篇 |
运输经济 | 124篇 |
旅游经济 | 304篇 |
贸易经济 | 4012篇 |
农业经济 | 768篇 |
经济概况 | 2868篇 |
信息产业经济 | 4篇 |
邮电经济 | 50篇 |
出版年
2021年 | 117篇 |
2020年 | 193篇 |
2019年 | 311篇 |
2018年 | 980篇 |
2017年 | 999篇 |
2016年 | 726篇 |
2015年 | 244篇 |
2014年 | 387篇 |
2013年 | 1909篇 |
2012年 | 637篇 |
2011年 | 1165篇 |
2010年 | 1017篇 |
2009年 | 998篇 |
2008年 | 933篇 |
2007年 | 993篇 |
2006年 | 430篇 |
2005年 | 452篇 |
2004年 | 486篇 |
2003年 | 526篇 |
2002年 | 449篇 |
2001年 | 367篇 |
2000年 | 385篇 |
1999年 | 343篇 |
1998年 | 368篇 |
1997年 | 344篇 |
1996年 | 352篇 |
1995年 | 275篇 |
1994年 | 270篇 |
1993年 | 302篇 |
1992年 | 318篇 |
1991年 | 318篇 |
1990年 | 273篇 |
1989年 | 228篇 |
1988年 | 197篇 |
1987年 | 219篇 |
1986年 | 245篇 |
1985年 | 332篇 |
1984年 | 272篇 |
1983年 | 286篇 |
1982年 | 236篇 |
1981年 | 248篇 |
1980年 | 248篇 |
1979年 | 240篇 |
1978年 | 211篇 |
1977年 | 171篇 |
1976年 | 180篇 |
1975年 | 159篇 |
1974年 | 151篇 |
1973年 | 134篇 |
1972年 | 111篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
171.
This study investigated (1) whether potential future purchasing agents were predisposed to accept gratuities or whether the practice of gratuity acceptance is a manifestation of the job itself, (2) whether the existence of a code of ethics forbidding gratuity acceptance curtails the occurrence, and (3) whether disparities in ethics policies between the sales and purchasing functions affect gratuity acceptance. Hypotheses based upon the concepts of organizational concern and institutionalized ethics are developed and empirically tested. Results suggest that future purchasing agents are predisposed to accept gratuities and that formal written ethics policies decrease the acceptance of gratuities. Disparities in ethics policies between the sales and purchasing functions concerning gratuities failed to affect gratuity acceptance significantly.Gregory B. Turner is assistant professor of marketing at Livingston University. He has published inThe International Journal of Logistics Management and theTransportation Journal.G. Stephen Taylor is Associate Professor of management at Mississippi State University. His research interests include ethics in computer usage, performance appraisal, and turnover control.Mark F. Hartley is Assistant Professor and National Association of Purchasing Management/Carolinas-Virginia chair of Purchasing at the College of Charleston. His research interests include ethics and professionalization of the purchasing function. 相似文献
172.
The end of the cold war has elevated environmental issues to the highest level of concern for humanity while creating a world order dominated by the United States of America and other Western nations. This new power structure may likely lead to increased business activity in many parts of the world, as nations formerly preoccupied with the cold war turn their attention to economic development. This paper examines the linkages among ethics, economic development and protection and restoration of the environment in The New World Order.Emily F. Carasco is Associate Professor at the Faculty of Law of the University of Windsor. Her research focus is on international law and family law.Jang B. Singh is Associate Professor at the Faculty of Business Administration of the University of Windsor. His research focus is on ethical issues involved in the management process. 相似文献
173.
Recent theoretical literature on the sources of economic growth has emphasized the role of human capital as an internal contributing force in the growth process. Empirical results reported in this paper provide support for this theoretical proposition. Cross-country data from 32 developing countries indicate that human capital (as alternatively measured by the primary school enrollment rate or the adult literacy rate) exerts a significant positive impact upon output growth. 相似文献
174.
175.
176.
177.
We investigate intraday bid‐ask spreads (BAS), volatility, and trading activity of thinly traded equity index futures contracts on the Singapore Exchange. Contrary to previous findings, we find a rather flat BAS pattern during the trading day. However, consistent with past findings, an increase in risk widens the spread and a higher trading activity reduces it. When trading occurs in a day, spreads are reduced. No significant difference in volatility between days with and without trades was detected. When trades occur, quote revisions increase, and it is positively related to the number of trades. An increase in the number of quote revisions increases the likelihood of a transaction, and when quotes are current, revisions that are accompanied by trades carry new information. We provide evidence that contracts that are thinly traded may possess liquidity attributes as long as their price quotes remain current. © 2003 Wiley Periodicals, Inc. Jrl Fut Mark 23:455–486, 2003 相似文献
178.
Alexander E. Ellinger Daniel F. Lynch James K. Andzulis Ronn J. Smith 《Journal of Business Logistics》2003,24(1):199-220
An Internet presence is a critical early component in the process of building towards a fully operational and unified e‐commerce strategy. E‐commerce has significantly impacted logistics/supply chain strategies and the development and implementation of a website have become key issues for many firms within the transportation industry. This study provides an overview of website content within the motor carrier industry. Content analysis was used to assess the site design, informational content, and the interactive content of 152 motor carrier websites, and to compare the features offered on the Top 100 motor carrier firm websites with those offered on the sites of smaller carrier firms. 相似文献
179.
A model to simulate the costs and returns of an individual dairy cow over 14 years under various assumptions of genetic potential, health status and management was developed especially to evaluate the effects of diseases that reduce production and reproduction efficiency and to evaluate alternative management interventions. Data were collected from the Food Animal Health Resource Management System (FAHRMX), Today's Electronic Planning (TELPLAN), Today's Electric Farm Accounting (TELFARM) databases and secondary sources at Michigan State University. A case study of cystic ovaries was analysed using the model. The results showed that it is more economical to treat cystic ovaries than not to treat, and treatment with Gonadotropin Releasing Hormone (GNRH) was superior to Human Chrionic Gonadotropin (HCG). Four to five lactations were the optimum for keeping a dairy cow to replacement and it was estimated that there is a loss of US$0.45 per day of extended calving interval (days open beyond the optimal 70 days). 相似文献
180.
The economic impact of adopting herd health programs for mastitis and reproduction by small-scale dairy producers of Central Thailand was assessed using a policy analysis matrix (PAM). Following a reduction in the incidence of bovine disease on adopter farms, an increase in private net profits is observed. More importantly the social costs of supporting dairy farmers is reduced; the PAM effective protection coefficient was reduced by 35% for mastitis program adopters and by 44% for reproductive program adopters, indicating improved social efficiency of dairy policy. Other indicators of efficiency and policy implications are discussed. 相似文献