全文获取类型
收费全文 | 6909篇 |
免费 | 218篇 |
专业分类
财政金融 | 1507篇 |
工业经济 | 541篇 |
计划管理 | 1105篇 |
经济学 | 1486篇 |
综合类 | 109篇 |
运输经济 | 61篇 |
旅游经济 | 153篇 |
贸易经济 | 1222篇 |
农业经济 | 324篇 |
经济概况 | 617篇 |
邮电经济 | 2篇 |
出版年
2023年 | 39篇 |
2021年 | 60篇 |
2020年 | 114篇 |
2019年 | 139篇 |
2018年 | 167篇 |
2017年 | 176篇 |
2016年 | 169篇 |
2015年 | 120篇 |
2014年 | 168篇 |
2013年 | 838篇 |
2012年 | 206篇 |
2011年 | 256篇 |
2010年 | 247篇 |
2009年 | 254篇 |
2008年 | 240篇 |
2007年 | 221篇 |
2006年 | 167篇 |
2005年 | 180篇 |
2004年 | 165篇 |
2003年 | 183篇 |
2002年 | 173篇 |
2001年 | 134篇 |
2000年 | 163篇 |
1999年 | 146篇 |
1998年 | 159篇 |
1997年 | 137篇 |
1996年 | 112篇 |
1995年 | 131篇 |
1994年 | 112篇 |
1993年 | 87篇 |
1992年 | 78篇 |
1991年 | 92篇 |
1990年 | 91篇 |
1989年 | 64篇 |
1988年 | 67篇 |
1987年 | 59篇 |
1986年 | 70篇 |
1985年 | 102篇 |
1984年 | 105篇 |
1983年 | 98篇 |
1982年 | 83篇 |
1981年 | 73篇 |
1980年 | 82篇 |
1979年 | 73篇 |
1978年 | 79篇 |
1977年 | 72篇 |
1976年 | 71篇 |
1975年 | 61篇 |
1974年 | 59篇 |
1973年 | 41篇 |
排序方式: 共有7127条查询结果,搜索用时 15 毫秒
111.
An Empirical Look at Software Patents 总被引:4,自引:1,他引:4
Software patents have grown rapidly in number and now comprise 15% of all patents. They are acquired primarily by large manufacturing firms in industries known for strategic patenting; only 5% belong to software publishers. The very large increase in software patent propensity over time is not adequately explained by changes in R&D investments, employment of computer programmers, or productivity growth. The residual increase in software patent propensity is consistent with a sizeable increase in the cost effectiveness of software patents during the 1990s, perhaps arising from changes in the application of patent law to computer software. 相似文献
112.
Christopher M. Harris James J. Lavelle Gary C. McMahan 《International Journal of Human Resource Management》2020,31(17):2141-2164
AbstractOrganizational justice research tends to focus on the effects of fair treatment from organizations or supervisors on employee attitudes and behaviors. Thus, there is a dearth of research on the effects of fair treatment attributable to other parties that employees interact with at work such as coworkers and clients. Controlling for organization-focused and supervisor-focused justice, results from our field study of employees working in a healthcare organization demonstrate that perceptions of client-focused fairness uniquely predicts supervisor ratings of employees organizational citizenship behavior toward clients and that perceptions of workgroup-focused justice uniquely predicts organizational citizenship behavior toward workgroups. Further, we find that client-focused justice perceptions uniquely predict employee turnover intention. 相似文献
113.
This article examines the external shocks and subsequent adjustment processes in the Soviet Union, China, and Hungary during 1974–76, 1979–81, and 1984–87. It compares the experiences of the three socialist countries with regard to external shocks to those of inward-and outward-oriented groups of newly industrializing countries (NICs). In contrast to the NICs, terms of trade effects were of secondary magnitude to export demand effects of external shocks in the three socialist countries during the first two periods. The oil-exporting Soviet Union had beneficial terms of trade effects during the first two periods, with unfavorable effects coming only in the third period. The adjustment responses to the external shocks varied greatly in the Soviet Union from the other two reform-oriented socialist countries and from both groups of NICs. It is interesting to note that the types of responses in the Soviet Union were quite opposite to that one observes for market economies. However, reform-oriented China and Hungary seemed to have response patterns similar to those of market economies, though China's response was similar to the outward-oriented NICs, while Hungary's was similar to the inward-oriented NICs.The authors would like to thank two anonymous referees, as well as Robert Dernberger, Albert Fishlow, Gregory Grossman, Chung Lee, Michael Plummer, Laura Tyson, and Benjamin Ward, for useful comments on this paper. Research in preparing this study was partly supported by a grant from the Institute of International Studies and Center for Slavic and East European Studies of the University of California, Berkeley. 相似文献
114.
Entropy concepts have developed in four general contexts—thermodynamics, communication theory, statistical information theory and social and life sciences. These concepts have five distinct mathematical forms. Ambiguity and complexity in utilization of the concept has been heightened by this multi-faceted heritage. Effective utilization may be strengthened by a sharper articulation of entropy through combinations of literal, mathematical and graphical modes of expression. Geography and planning as user disciplines have important responsibilities in enhancing cross-disciplinary communication of this important adisciplinary concept. Implications of these arguments for the social sciences include the need for caution in drawing social analogies from the ambiguous entropy concepts of statistical mechanics; and an indication of the potential benefits of social science models based on the unambiguous entropic constructs of statistical information theory. 相似文献
115.
Kevin B. Hendricks Vinod R. Singhal Christine I. Wiedman 《Journal of Operations Management》1995,12(3-4)
This paper empirically investigates the impact of capacity expansion decisions on the market value of the firm. Event study methodology is used to estimate the abnormal change in stock prices around capacity expansion decision announcements. On the day of the announcement, the magnitude of the price change is abnormally high, evidenced by a significantly positive mean standardized square of the abnormal change (Beaver's U-statistic). We also analyze factors that we could affect the direction and magnitude of the abnormal change in the stock prices. We find that the change in price on the day of the announcement is positively and significantly related to the real growth rate of the industry, and negatively and significantly related to the variability of demand. A negative relationship between the price change and industry capacity utilization is also found which can have important implications for companies which follow the wait-and-see approach to capacity expansion decisions. We also find management ownership to be a significant predictor in explaining stock price changes around these announcements. 相似文献
116.
James A. Gross 《Industrial Relations Journal》2002,33(3):182-196
This essay reviews the international human rights standards that the Human Rights Watch Report uses as standards for judgment, summarises with some commentary the Report’s major findings and recommendations, comments more fully on certain findings and recommendations, and, in conclusion, raises several issues that need to be addressed given the state of freedom of association and other related human rights in the USA. 相似文献
117.
118.
119.
James W Friedman 《Information Economics and Policy》1983,1(1):37-53
This paper deals with an infinite horizon n firm oligopoly in which firms are assumed to have incomplete information about one another's actions and profit functions. An equilibrium concept is defined that is similar to the Nash non-cooperative equilibrium, but is suitable for the information assumptions of the model. The equilibrium uses a type of bounded rationality which makes firms' computations relatively easy. This is due to an implicit assumption that computation is costly and a Bayesian approach is prohibitively costly. This low information Nash equilibrium is proved to exist, and, in addition, an adaptive expectations decision process is described which, if followed by all firms, leads to the low information Nash equilibrium. 相似文献
120.