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   140569篇
  免费   3231篇
  国内免费   1篇
财政金融   26174篇
工业经济   12115篇
计划管理   22465篇
经济学   30498篇
综合类   1490篇
运输经济   965篇
旅游经济   2528篇
贸易经济   23894篇
农业经济   6223篇
经济概况   17154篇
信息产业经济   7篇
邮电经济   288篇
  2021年   849篇
  2020年   1634篇
  2019年   2386篇
  2018年   2410篇
  2017年   2557篇
  2016年   2729篇
  2015年   2107篇
  2014年   3430篇
  2013年   15401篇
  2012年   4290篇
  2011年   4474篇
  2010年   3945篇
  2009年   4505篇
  2008年   4088篇
  2007年   3432篇
  2006年   3720篇
  2005年   3682篇
  2004年   3266篇
  2003年   3009篇
  2002年   2957篇
  2001年   2740篇
  2000年   2659篇
  1999年   2511篇
  1998年   2409篇
  1997年   2409篇
  1996年   2284篇
  1995年   2082篇
  1994年   2108篇
  1993年   2076篇
  1992年   2120篇
  1991年   2034篇
  1990年   1896篇
  1989年   1722篇
  1988年   1660篇
  1987年   1663篇
  1986年   1745篇
  1985年   2517篇
  1984年   2406篇
  1983年   2214篇
  1982年   2069篇
  1981年   1986篇
  1980年   1954篇
  1979年   1881篇
  1978年   1682篇
  1977年   1643篇
  1976年   1397篇
  1975年   1299篇
  1974年   1194篇
  1973年   1193篇
  1972年   906篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
941.
942.
Modeling the day-of-the-week shopping activity and travel patterns   总被引:1,自引:0,他引:1  
Dae-Sic Yun  M.E. O'Kelly 《Socio》1997,31(4):307-319
This research develops models that extend existing multi-day analyses of shopping activity patterns. The main hypothesis is that shopping activity choice behavior varies, depending on the day of the week. Using a nested logit model structure, this hypothesis is tested by developing models of daily activity choice behavior for each day of the week. In doing so, household activity choice behavior is represented by three stages, with a shopping activity participation decision as the highest stage, the scheduling decision as the next lower stage, and the number of shopping stops as the lowest stage. Empirical results confirm the nested logit model structure hypothesized in this study. Furthermore, it is found that major distinctions in the daily utility functions take place between the weekday and weekend models. However, differences among weekday models are also observed. This indicates that there appear to be behavioral differences even among weekdays although households are exposed to the same set of temporal constraints.  相似文献   
943.
944.
This article objects to a recent tendency of legal and economic scholars to "romanticize" the corporate governance role of German universal banks and Japanese main banks. There are potential conflicts between banks' interests as lenders and as shareholders that are likely to make banks less-than-ideal monitors for outside shareholders. Citing evidence that Japanese corporate borrowers pay above-market interest rates for their bank financing, Macey and Miller interpret the high interest rates as "rents" earned by Japanese banks on their loan portfolios in exchange for (1) insulating incumbent management of borrower firms from hostile takeover and (2) accepting suboptimal returns on their equity holdings.
The main problems with the German and Japanese systems stem from their failure to produce well-developed capital markets. Concentrated and stable shareholdings reduce the order flow in the market, thereby depriving the market of liquidity. And the lack of capital market liquidity– combined with the intense loyalty of the banks towards incumbent management–removes the ability of outside shareholders to make a credible threat of takeover if managerial performance is substandard.
The problem with American corporate governance–if indeed there is one–is not that hostile takeovers are bad, but that there are not enough of them due to regulatory restrictions and misguided legal policies. While U.S. law should be amended to give banks and other debtholders more power over borrowers in the case of financial distress, encouraging U.S. banks to become large stockholders is not likely to improve corporate efficiency. Strengthening the "voice" of American equity holders by eliminating restrictions on the market for corporate control would be the most effective step in improving firm performance.  相似文献   
945.
946.
The personal computer (PC) marketplace in the US presents a dizzying array of component suppliers and products. No single firm dominates the industry with a complete package of hardware and software components. Although one company's operating systems and general-purpose applications are installed on most PCs in the US, the other system components—processors, memory, storage devices, display adapters, monitors, specialized applications, and so on—come from any number of sources. David T. Methe, Ryoko Toyama, and Junichiro Miyabe point out that the PC industry in Japan also exhibits this decentralized nature. However, they also note that despite the decentralized network structure of the Japanese PC industry, one company—NEC—was able to achieve a dominant market share. To provide insight into the key issues involved in the management of complex technology, they contrast NEC's strategic approach to product development and organizational learning with the approaches taken by Fujitsu—the firm that placed a distant second in this market. Despite matching NEC in terms of technological capabilities, financial resources, and managerial talent, Fujitsu never managed to threaten NEC's dominance of the PC market in Japan. Fujitsu continually emphasized technological leadership, even at the expense of protecting its installed base. Poor coordination of resources and product development efforts resulted in incompatibilities among Fujitsu's various products, and the company failed to foster close relationships with suppliers of such key technologies as software and peripherals. NEC's PCs did not enjoy the advantages of first-to-market status or technological leadership. Instead, NEC achieved market dominance by finding the combination of product technologies that met the needs of the greatest number of consumers. Throughout almost 20 years of competition in the PC industry, NEC successfully maintained consistency and backward compatibility across its product lines. NEC also recognized the importance of third-party software developers, and carefully cultivated relations with these firms as a source of competitive advantage. In other words, NEC struck the right balance between three key factors: technological innovation, motivation of third-party developers of software and peripherals, and service to its installed base of customers.  相似文献   
947.
Two readings are made of Mynatt, Omundson, Schroeder and Stevens (pp. 657–683). The first reading views the paper through a largely “conventional” social science lens, while the second adopts a more critical perspective which raises three issues: abstraction in research; gender and ethnicity; and the rhetoric of research.  相似文献   
948.
In this comment we identify the key features of the Frantz and Walker (1997) game theoretic model that drive the non-disclosure equilibrium result in their paper. We argue that, although technically correct, their model fails to capture certain aspects of real-world wage bargaining that will be important in determining optimal disclosure strategies in practice. However, Frantz and Walker's paper illustrates the potential of analytical techniques to contribute to the employee disclosure debate.  相似文献   
949.
I model imperfect information, derive a downward sloping market demand curve, and explain vacancies in a partial equilibrium model of a rental housing market. Tenants can be completely described by an exogenous demand curve, perhaps arising from differences in income, preferred location, or tastes, and view vacant units based on a stochastic arrival of rental information. Free entry of these landlords induces excess rental housing capacity (equilibrium vacancies). I determine the equilibrium distribution of rents for vacant units, show that this rent distribution may be discontinuous, and explore the equilibrium vacancy rate to changes in exogenous parameters. The resulting characterization of equilibrium distributions of rents may be amenable to econometric modeling exploring the relationship between market rents and vacancies.  相似文献   
950.
Over the past decade central governments of the UK, Sweden and Australia have been engaged in significant reforms in the way they pay their employees. These reforms have generally taken the form of the decentralization of pay bargaining and the individualization of pay. This paper details the policies that have been implemented in central government in these countries and presents some preliminary results on the effects of these. While the actual implementation has varied quite substantially across the countries and the analysis of the outcomes must be regarded as preliminary, there is some evidence that the reforms have led to an increase in earnings dispersion.  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