全文获取类型
收费全文 | 6242篇 |
免费 | 230篇 |
专业分类
财政金融 | 1148篇 |
工业经济 | 485篇 |
计划管理 | 1196篇 |
经济学 | 1392篇 |
综合类 | 57篇 |
运输经济 | 59篇 |
旅游经济 | 107篇 |
贸易经济 | 1208篇 |
农业经济 | 220篇 |
经济概况 | 568篇 |
信息产业经济 | 1篇 |
邮电经济 | 31篇 |
出版年
2023年 | 32篇 |
2022年 | 30篇 |
2021年 | 63篇 |
2020年 | 105篇 |
2019年 | 143篇 |
2018年 | 177篇 |
2017年 | 202篇 |
2016年 | 185篇 |
2015年 | 143篇 |
2014年 | 200篇 |
2013年 | 756篇 |
2012年 | 248篇 |
2011年 | 278篇 |
2010年 | 250篇 |
2009年 | 289篇 |
2008年 | 249篇 |
2007年 | 241篇 |
2006年 | 197篇 |
2005年 | 187篇 |
2004年 | 175篇 |
2003年 | 185篇 |
2002年 | 152篇 |
2001年 | 128篇 |
2000年 | 137篇 |
1999年 | 127篇 |
1998年 | 123篇 |
1997年 | 93篇 |
1996年 | 106篇 |
1995年 | 80篇 |
1994年 | 79篇 |
1993年 | 76篇 |
1992年 | 78篇 |
1991年 | 84篇 |
1990年 | 56篇 |
1989年 | 38篇 |
1988年 | 42篇 |
1987年 | 49篇 |
1986年 | 49篇 |
1985年 | 69篇 |
1984年 | 56篇 |
1983年 | 52篇 |
1982年 | 51篇 |
1981年 | 51篇 |
1980年 | 44篇 |
1979年 | 44篇 |
1978年 | 28篇 |
1977年 | 27篇 |
1976年 | 24篇 |
1974年 | 26篇 |
1973年 | 20篇 |
排序方式: 共有6472条查询结果,搜索用时 15 毫秒
51.
The neutral architecture of the Internet is being challenged by various parties, such as network operators providing the connections to end-users, who are interested in gaining control of the information exchanged over the Internet. What are the effects on competition and welfare of such practices? Currently, there exists very little economic theory on network neutrality. This paper provides a preliminary analysis of the type of economic modeling that can address network neutrality, as well as of the type of results that can be expected. 相似文献
52.
53.
54.
Competition in the long-distance market in the US continues to intensify; the 1996 Telecommunications Act has led to increased competition in long-distance telephony especially as the Regional Bell Operating Companies have begun to gain entry to long-haul, long-distance markets. In order to better understand the implications of having increased service offerings, models of how customers choose between carriers (and the impact of this choice on subsequent usage) will be useful. We develop the first publicly available models that simultaneously estimate choice and usage for intraLATA long-distance in the US. Utilizing a generalized Tobit model, the price responsiveness of usage and carrier choice are estimated. The results are generally consistent with expectations both in terms of theory and of practical experience in the industry. 相似文献
55.
While it is crucial to understand the impact of regulatory changes on market risk, the literature does not show how risk responds to expected regulatory changes that are specifically designed to change risk. Our paper fills this gap by providing a detailed study of one such case. Using both a sample of privatized U.K. companies, and U.K. and U.S. control portfolios, between 1993 and 2000, we show (both for the single-factor market model and the three-factor Fama-French model) that the observed changes in market risk are significant and consistent with theory. 相似文献
56.
We consider carefully the evidence from traded prices (as proxied by unit values) concerning the transmission of the effects of globalisation to domestic labour markets. Using standard index number techniques we decompose changes in sectoral import and export unit values into movements due to changes in pure prices of the initial bundle of goods imported or exported and changes due to upgrading of that bundle. Looking at the imports of selected European countries of textiles, clothing and footwear relative to engineering products we find evidence of strongly falling pure prices of the unskilled intensive products relative to the skilled products in the 1980s. This reinforces the view that import prices can capture the impact of globalisation in terms of falling relative prices for products produced with the intensive use of unskilled labour. However, the trends are not common across all the unskilled sectors; footwear is clearly an exception. In the absence of detailed domestic data, we look for reactions by domestic firms to increased import competition in movements in the price and composition of exports. We find evidence of stiff price competition from imports being associated with similar movements in export prices and no support for the view that import competition from low–wage countries has led to upgrading of the quality of exports. 相似文献
57.
58.
Faced with a record level of unemployment, the present debate in Germany is to extend the weekly hours of work. In this paper the employment effects of an economy-wide increase in weekly hours are quantified on the basis of a computable general equilibrium model for different specifications of the wage setting rule and the use of additional policy-induced public income. The simulation results back the argument of the opponents of longer working time that not more jobs will be created. However, when the higher tax revenues from GDP growth are used to reduce social security contributions, then the claim of the proponents that more jobs will be created can be supported. 相似文献
59.
60.