全文获取类型
收费全文 | 16978篇 |
免费 | 1547篇 |
国内免费 | 1篇 |
专业分类
财政金融 | 3123篇 |
工业经济 | 1478篇 |
计划管理 | 3220篇 |
经济学 | 3848篇 |
综合类 | 184篇 |
运输经济 | 195篇 |
旅游经济 | 230篇 |
贸易经济 | 3383篇 |
农业经济 | 939篇 |
经济概况 | 1908篇 |
信息产业经济 | 1篇 |
邮电经济 | 17篇 |
出版年
2021年 | 157篇 |
2020年 | 310篇 |
2019年 | 668篇 |
2018年 | 450篇 |
2017年 | 597篇 |
2016年 | 583篇 |
2015年 | 544篇 |
2014年 | 622篇 |
2013年 | 1774篇 |
2012年 | 755篇 |
2011年 | 751篇 |
2010年 | 647篇 |
2009年 | 604篇 |
2008年 | 537篇 |
2007年 | 553篇 |
2006年 | 471篇 |
2005年 | 374篇 |
2004年 | 369篇 |
2003年 | 339篇 |
2002年 | 376篇 |
2001年 | 326篇 |
2000年 | 317篇 |
1999年 | 235篇 |
1998年 | 240篇 |
1997年 | 237篇 |
1996年 | 229篇 |
1995年 | 205篇 |
1994年 | 212篇 |
1993年 | 205篇 |
1992年 | 254篇 |
1991年 | 232篇 |
1990年 | 189篇 |
1989年 | 160篇 |
1988年 | 155篇 |
1987年 | 198篇 |
1986年 | 190篇 |
1985年 | 261篇 |
1984年 | 285篇 |
1983年 | 262篇 |
1982年 | 232篇 |
1981年 | 230篇 |
1980年 | 223篇 |
1979年 | 235篇 |
1978年 | 147篇 |
1977年 | 139篇 |
1976年 | 101篇 |
1975年 | 130篇 |
1974年 | 93篇 |
1973年 | 94篇 |
1971年 | 77篇 |
排序方式: 共有10000条查询结果,搜索用时 218 毫秒
41.
While the dynamic theory of production provides little insight towards identifying a specific functional form for the firm's technology, dynamic production analysis has been explored traditionally in a parametric framework. A nonparametric dynamic dual cost approach to production analysis is developed in this article. Recovering technological information from intertemporal cost minimizing behavior is possible without imposing a parametric functional form on the firm's technology. Nonparametric tests to analyze the structure of a dynamic technology are presented from a dynamic cost minimizing perspective. The empirical implementation of these tests is illustrated for a balanced panel data set of Pennsylvania dairy operators during the time period 1986–1992. 相似文献
42.
Tain‐Jy Chen 《Journal of Management Studies》2003,40(5):1107-1130
ABSTRACT This paper illustrates foreign direct investment (FDI) as the management of important network relations, using Taiwan's electronics firms as an example. Through FDI, seemingly small and weak firms propel the process of internationalization by making maximum use of external resources to which they have access. FDI often starts at a location close to the home base where support from the domestic networks can be drawn, subsequently moving on to more distant locations after investors have accumulated new network resources. The location chosen is usually an area rich in network resources or in close proximity to such rich networks. FDI enables the investors to construct a regional, or even global, sub‐network under their control to supply a set of wide‐ranging, differentiated and low‐cost products in a flexible fashion, and sometimes within close proximity to the markets. With this capacity for versatility, investors become valuable partners for multinational firms that offer global services. 相似文献
43.
Rudy K. Moenaert Dirk Deschoolmeester Arnoud De Meyer William E. Souder 《R&D Management》1992,22(1):021-040
Abstract The research question in the present article can be phrased in the following way: what are the elements which influence the perception of the utility of information received from another function? A field study research has been conducted in 40 Belgian companies. In each company, we have studied two on-going innovation projects (one planning project, one development project). Crossfunctional communication behaviours at the R&D/marketing interface have been measured by means of mailed structured questionnaires. Three-hundred and eighty-six questionnaires have been returned. The data analyses show that there are four underlying information dimensions, i.e. the perceived relevance, the perceived comprehensibility, the perceived novelty and the perceived credibility of information. We also discuss some contingency variables (function of the message receiver, stage in the innovation process) that might moderate the impact of these dimensions. It will be shown that the interaction between source and receiver has a significant impact on the perceived credibility, the perceived comprehensibility and the perceived novelty of the received information. 相似文献
44.
The paper extends Manning's model on education and balanced growth to include labour immigration. Each immigration unit is assumed to consist of one skilled worker and some unskilled members. The optimal immigration policy which maximizes the per capita steady-state consumption of the host country is derived. We show that optimal immigration policy can reduce the steady-state skilled labour ratio. More interesting still, contrary to the widespread belief that immigration of skilled workers hurts local skilled workers, it is the unskilled local workers whose interests are threatened by optimal immigration policy. 相似文献
45.
46.
This paper investigates India's exceptional development pattern, specifically the major importance of information technology services (ITS), and compares it with China's development pattern. Both countries want to develop capabilities for carrying out the innovation of technologies that compete at the state-of-the-art in the world market. The paper posits that technological/economic success in the contemporary world market requires the ability to innovate complex technologies and complex technology-related services. The share of trade represented by complex technologies is compared with the “high-tech” share. The trading patterns of the two countries are compared using United Nations data. Two case studies of Indian ITS companies are then compared with two case studies of Chinese manufacturing companies. Historical and cultural differences appear to explain some of the differences in the development patterns of the companies located in the two countries. 相似文献
47.
48.
K.E. Hughes II & J. Kenneth Reynolds 《Journal of Business Finance & Accounting》2001,28(9&10):1351-1386
This study examines whether the uncertainty arising from a firm's exposure to future environmental costs (environmental uncertainty) affects the market's price sensitivity to reported earnings. Specifically, when environmental uncertainty is significantly high, are investors more responsive to reported earnings released by 'high-polluting' firms than reported earnings announced by 'low-polluting' firms within the same industry? The initial impact of Title IV (the acid rain provisions) of the 1990 Clean Air Act Amendments (1990 CAAA) on the US electric utility industry provides the research setting required to isolate the effects of environmental uncertainty while addressing this question. Consistent with theoretical predictions, we find that the earnings response coefficients (ERCs) of high-polluting electric utilities are significantly greater than those of their low-polluting counterparts during a predicted period of elevated environmental uncertainty. In adjoining sample years associated with lower environmental uncertainty, we observe no statistical difference in the magnitude of the ERCs between these two groups. In addition, the study's findings suggest that the magnitude of the ERC is increasing in the firm's exposure to future environmental costs, after controlling for other factors that potentially affect ERCs. 相似文献
49.
50.
The financial revolution improved the British government's ability to borrow, and thus its ability to wage war. North and Weingast argued that it also permitted private parties to borrow more cheaply and widely. We test these inferences with evidence from a London bank. We confirm that private bank credit was cheap in the early eighteenth century, but we argue that it was not available widely. Importantly, the government reduced the usury rate in 1714, sharply reducing the circle of private clients that could be served profitably. 相似文献