全文获取类型
收费全文 | 17904篇 |
免费 | 407篇 |
国内免费 | 1篇 |
专业分类
财政金融 | 3527篇 |
工业经济 | 1434篇 |
计划管理 | 2998篇 |
经济学 | 3906篇 |
综合类 | 326篇 |
运输经济 | 97篇 |
旅游经济 | 301篇 |
贸易经济 | 2827篇 |
农业经济 | 701篇 |
经济概况 | 2157篇 |
信息产业经济 | 1篇 |
邮电经济 | 37篇 |
出版年
2020年 | 183篇 |
2019年 | 258篇 |
2018年 | 324篇 |
2017年 | 366篇 |
2016年 | 328篇 |
2015年 | 239篇 |
2014年 | 339篇 |
2013年 | 1825篇 |
2012年 | 491篇 |
2011年 | 521篇 |
2010年 | 476篇 |
2009年 | 529篇 |
2008年 | 492篇 |
2007年 | 426篇 |
2006年 | 387篇 |
2005年 | 346篇 |
2004年 | 357篇 |
2003年 | 351篇 |
2002年 | 325篇 |
2001年 | 358篇 |
2000年 | 366篇 |
1999年 | 327篇 |
1998年 | 336篇 |
1997年 | 354篇 |
1996年 | 315篇 |
1995年 | 295篇 |
1994年 | 287篇 |
1993年 | 299篇 |
1992年 | 347篇 |
1991年 | 345篇 |
1990年 | 264篇 |
1989年 | 258篇 |
1988年 | 214篇 |
1987年 | 225篇 |
1986年 | 241篇 |
1985年 | 330篇 |
1984年 | 284篇 |
1983年 | 331篇 |
1982年 | 269篇 |
1981年 | 292篇 |
1980年 | 276篇 |
1979年 | 281篇 |
1978年 | 218篇 |
1977年 | 223篇 |
1976年 | 224篇 |
1975年 | 197篇 |
1974年 | 186篇 |
1973年 | 149篇 |
1972年 | 122篇 |
1971年 | 110篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
981.
982.
Timothy J. Richards William J. AllenderStephen F. Hamilton 《International Journal of Industrial Organization》2012,30(1):50-57
When commodity prices rise, wholesalers and retailers of products derived from basic commodities respond by passing along at least a portion of the price increase to consumers. In this paper we examine whether firms respond differently to positive commodity price shocks than to negative commodity price shocks; that is, whether commodity price volatility alters market power. We exploit recent volatility in food commodity prices over the period 2007-2010 to investigate how commodity price shocks translate into market power in two different vertically-structured food product industries: potatoes and fluid milk. For potatoes, we find both wholesale and retail market power decreases (increases) during periods of rising (falling) commodity prices. Moreover, price-cost margins widen a substantially greater degree in response to negative shocks than margins narrow in response to positive shocks, indicating that commodity price volatility increases market power. For fluid milk, we find that market power likewise declines during periods of rising commodity prices; however, market power does not significantly change during periods of falling commodity prices, suggesting that commodity price volatility decreases market power. 相似文献
983.
Chao LW Szrek H Peltzer K Ramlagan S Fleming P Leite R Magerman J Ngwenya GB Pereira NS Behrman J 《Journal of development economics》2012,98(1):94-107
Finding an efficient method for sampling micro- and small-enterprises (MSEs) for research and statistical reporting purposes is a challenge in developing countries, where registries of MSEs are often nonexistent or outdated. This lack of a sampling frame creates an obstacle in finding a representative sample of MSEs. This study uses computer simulations to draw samples from a census of businesses and non-businesses in the Tshwane Municipality of South Africa, using three different sampling methods: the traditional probability sampling method, the compact segment sampling method, and the World Health Organization's Expanded Programme on Immunization (EPI) sampling method. Three mechanisms by which the methods could differ are tested, the proximity selection of respondents, the at-home selection of respondents, and the use of inaccurate probability weights. The results highlight the importance of revisits and accurate probability weights, but the lesser effect of proximity selection on the samples' statistical properties. 相似文献
984.
Alpaslan Akay Olivier Bargain Klaus F. Zimmermann 《Journal of economic behavior & organization》2012,81(2):421-441
As their environment changes, migrants constitute an interesting group to study the effect of relative income on subjective well-being. This paper focuses on the huge population of rural-to-urban migrants in China. Using a novel dataset, we find that the well-being of migrants depends on several reference groups: it is negatively affected by the income of other migrants and workers of home regions; in contrast, we identify a positive, ‘signal’ effect vis-à-vis urban workers: larger urban incomes indicate higher income prospects for the migrants. These effects are particularly strong for migrants who wish to settle permanently, decline with years since migrations and change with other characteristics including work conditions and community ties. 相似文献
985.
Eva Gallardo-Gallardo Nicky Dries Tomás F. González-Cruz 《Human Resource Management Review》2013,23(4):290-300
The ongoing confusion about the meaning of ‘talent’ within the world of work is hindering the establishment of widely accepted talent management theories and practices. The aim of this paper is to contribute to the literature on talent management by offering an in-depth review of the talent concept within the specific context of the world of work, and proposing a framework for its conceptualization. We group different theoretical approaches to talent into ‘object’ (i.e., talent as natural ability; talent as mastery; talent as commitment; talent as fit) versus ‘subject’ approaches (i.e., talent as all people; talent as some people) and identify dynamics existing within and between them, as well as implications for talent management theory and practice. Finally, we discuss different avenues for further research aimed at developing the talent—and consequently, the talent management—construct further. 相似文献
986.
David B. Hamilton 《Journal of economic issues》2013,47(4):1531-1554
987.
988.
Marjorie A. Rosenberg Ph.D. F.S.A. M.A.A.A. Mark J. Browne Ph.D. 《North American actuarial journal : NAAJ》2013,17(4):84-94
Abstract The outpatient prospective payment system for the Medicare program became effective Aug. 1, 2000, as mandated by the Balanced Budget Act of 1997. This outpatient program complements Medicare’s inpatient prospective payment system, which was introduced in 1983. A survey of the literature over the past 20 years is undertaken to review the effects of the inpatient prospective payment system and diagnosis-related groups (DRGs) on inpatient hospital utilization, expenditures, and outcomes. The level of the DRG payment has been questioned, as well as the process of adjusting the payment levels from one year to the next. In addition, past research has speculated that the DRG classification may not be sensitive to severity and is subject to coding ambiguities. These conclusions can be used as input to future research on the new outpatient program, as well as updating research on the inpatient program. 相似文献
989.
This paper analyses productivity growth in 16 of Taiwan's manufacturing industries during the period 1978–1992. The non-parametric Data Envelopment Analysis approach is used to compute Malmquist productivity indexes. These are decomposed into efficiency change and technical change. The latter is further decomposed into an output bias, an input bias and a magnitude component. In addition, the direction of input bias is identified. Empirical results indicate that the sector's TFP increased at a rate of 2.89% per annum, which could be ascribed to a technical progress (2.56%) and an efficiency improvement (0.33%). 相似文献
990.
This study attempts to explain theoretically and empirically the influence of developed and developing countries’ environments on foreign direct investment from the United States. It is postulated that foreign direct investment into these economies can be explained by examining interactions among three environmental constructs: technological development, quality of life, and political instability. A structural equation model is developed to test the concurrent and longitudinal influence of the three environmental constructs on foreign direct investment into these economies from the United States. 相似文献