全文获取类型
收费全文 | 31866篇 |
免费 | 698篇 |
专业分类
财政金融 | 5774篇 |
工业经济 | 2403篇 |
计划管理 | 5518篇 |
经济学 | 7348篇 |
综合类 | 347篇 |
运输经济 | 241篇 |
旅游经济 | 492篇 |
贸易经济 | 5188篇 |
农业经济 | 1569篇 |
经济概况 | 3586篇 |
信息产业经济 | 3篇 |
邮电经济 | 95篇 |
出版年
2023年 | 164篇 |
2021年 | 216篇 |
2020年 | 397篇 |
2019年 | 629篇 |
2018年 | 681篇 |
2017年 | 743篇 |
2016年 | 727篇 |
2015年 | 479篇 |
2014年 | 765篇 |
2013年 | 3322篇 |
2012年 | 1059篇 |
2011年 | 1119篇 |
2010年 | 969篇 |
2009年 | 1095篇 |
2008年 | 1000篇 |
2007年 | 882篇 |
2006年 | 823篇 |
2005年 | 713篇 |
2004年 | 654篇 |
2003年 | 653篇 |
2002年 | 632篇 |
2001年 | 684篇 |
2000年 | 672篇 |
1999年 | 596篇 |
1998年 | 662篇 |
1997年 | 613篇 |
1996年 | 605篇 |
1995年 | 504篇 |
1994年 | 506篇 |
1993年 | 515篇 |
1992年 | 516篇 |
1991年 | 538篇 |
1990年 | 489篇 |
1989年 | 364篇 |
1988年 | 364篇 |
1987年 | 374篇 |
1986年 | 366篇 |
1985年 | 517篇 |
1984年 | 482篇 |
1983年 | 457篇 |
1982年 | 389篇 |
1981年 | 408篇 |
1980年 | 386篇 |
1979年 | 388篇 |
1978年 | 341篇 |
1977年 | 247篇 |
1976年 | 263篇 |
1975年 | 226篇 |
1974年 | 206篇 |
1973年 | 210篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
Fares A. Ghandour Paulina Swartz Heidi M. Grenek Edward B. Roberts 《Technology Analysis & Strategic Management》2004,16(4):435-455
The number of firms using alliances as part of their corporate venturing or market entry strategies has surged over the past decade. Three common reasons cited for pursuing alliances are technology convergence, market access and alliance partners' complementary resources. This paper contrasts the alliance strategies of HP and IBM, two major competitors in electronic services (i.e. Internet-based 'e- service') businesses, using the Familiarity Matrix as a display tool to portray the strategies. Whereas the HP strategy is to attempt to establish its technology infrastructure as the standard e-services infrastructure on the Internet, IBM aims to position its IBM Global Services, rather than its technology, at the center of this ecosystem. 相似文献
3.
This paper examines monthly wage data collected by the Agro Economic Survey from seven villages in the Cimanuk River Basin of West Java, where data on agricultural and non-agricultural wages and prices of nine essential commodities were collected twice monthly between 1977 and 1983. Movements in money wages deflated by both the rice price and a weighted index of basic commodities are analysed in detail and differences between lowland and upland villages are discussed. 相似文献
4.
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
5.
Duong Nguyen Suchismita Mishra Arun Prakash Dilip K. Ghosh 《The Journal of Financial Research》2007,30(3):379-398
We examine whether the use of the three‐moment capital asset pricing model can account for liquidity risk. We also make a comparative analysis of a four‐factor model based on Fama–French and Pástor–Stambaugh factors versus a model based solely on stock characteristics. Our findings suggest that neither of the models captures the liquidity premium nor do stock characteristics serve as proxies for liquidity. We also find that sensitivities of stock return to fluctuations in market liquidity do not subsume the effect of characteristic liquidity. Furthermore, our empirical findings are robust to differences in market microstructure or trading protocols between NYSE/AMEX and NASDAQ. 相似文献
6.
Ian M. Dobbs† 《Journal of Business Finance & Accounting》2004,31(5-6):729-757
Replacement investment is essentially a regenerative optimal stopping problem; that is, the key decision concerns when to terminate the life of existing plant – and hence when to start over again. This paper examines this optimisation problem within a continuous time framework and studies the qualitative and quantitative impact of uncertainty on the timing of new investment (and the criteria that should be used for terminating the life of existing plant). 相似文献
7.
S K Smith 《Journal of economic and social measurement》1986,14(1):37-49
As the elderly population of the United States grows in absolute number and as a proportion of total population, accurate projections of that population become increasingly important for sound policy decisions. Cohort component techniques are typically used for state and local projections of the elderly population, but are often outdated or even nonexistent for many local areas. This paper suggests an alternative approach, based on Medicare data and simple projection techniques. Projections for several base periods and projection horizons are made for all states and for counties in Florida and are compared with actual Medicare enrollment. On the basis of these comparisons it appears that Medicare data and simple projection techniques can produce very useful short-run projections of the elderly population for states and local areas. 相似文献
8.
9.
10.