全文获取类型
收费全文 | 22007篇 |
免费 | 680篇 |
专业分类
财政金融 | 3810篇 |
工业经济 | 1544篇 |
计划管理 | 3907篇 |
经济学 | 5308篇 |
综合类 | 204篇 |
运输经济 | 267篇 |
旅游经济 | 406篇 |
贸易经济 | 3797篇 |
农业经济 | 916篇 |
经济概况 | 2515篇 |
信息产业经济 | 1篇 |
邮电经济 | 12篇 |
出版年
2023年 | 202篇 |
2022年 | 144篇 |
2021年 | 248篇 |
2020年 | 415篇 |
2019年 | 498篇 |
2018年 | 802篇 |
2017年 | 883篇 |
2016年 | 773篇 |
2015年 | 461篇 |
2014年 | 663篇 |
2013年 | 2926篇 |
2012年 | 795篇 |
2011年 | 714篇 |
2010年 | 760篇 |
2009年 | 771篇 |
2008年 | 643篇 |
2007年 | 528篇 |
2006年 | 485篇 |
2005年 | 422篇 |
2004年 | 384篇 |
2003年 | 405篇 |
2002年 | 366篇 |
2001年 | 357篇 |
2000年 | 380篇 |
1999年 | 321篇 |
1998年 | 307篇 |
1997年 | 305篇 |
1996年 | 281篇 |
1995年 | 260篇 |
1994年 | 251篇 |
1993年 | 286篇 |
1992年 | 263篇 |
1991年 | 267篇 |
1990年 | 246篇 |
1989年 | 238篇 |
1988年 | 214篇 |
1987年 | 193篇 |
1986年 | 221篇 |
1985年 | 312篇 |
1984年 | 286篇 |
1983年 | 282篇 |
1982年 | 243篇 |
1981年 | 234篇 |
1980年 | 250篇 |
1979年 | 206篇 |
1978年 | 177篇 |
1977年 | 169篇 |
1976年 | 150篇 |
1975年 | 135篇 |
1974年 | 121篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
1.
I examine the effect of reform on telecom performance using a second-generation regulatory framework index and panel data techniques to test how regulatory governance affected sector performance in 22 Latin American countries during the period 1980–1997. Sound regulatory governance in telecommunications has a positive impact on network expansion and efficiency, in both the static and dynamic specifications. Openness of markets to competition and divestment of former state-owned telco operators also contributed positively to better sector performance. The dynamic specification shows that past performance has its own strong effect on present (and perhaps future) performance. 相似文献
2.
3.
4.
The paper examines the relationship between transitory terms‐of‐trade shocks and private saving. Using a model allowing for nonseparability between the consumption of tradables and nontradables, the paper estimates the intertemporal elasticity of substitution while accounting for the intratemporal elasticity of substitution between the consumption of tradables and nontradables. Empirical analysis of data for five industrial countries indicates that in response to transitory terms‐of‐trade shocks, intertemporal substitution of consumption and intratemporal substitution of consumption between tradables and nontradables both have large effects on private saving. 相似文献
5.
The performance of service industries in Canada has been lower than that of good industries over the last four decades, with noticeable exceptions such as for railways and telecommunication carriers. Service industries were less economically (and technically) efficient in that they generated less output value (quantity) per hour worked (level and growth) or per combined unit of labour and capital (multifactor productivity growth) than good industries. The relative output price of services declined slightly over time compared with goods. At the disaggregated level, changing relative output prices were substantial and proved to be an important factor explaining the relative satisfactory economic performance of many service industries despite their low technical performance. Nevertheless, the output share of service industries increased over that period, sustained, mainly, by the growing recourse of all firms to outsourcing of services. 相似文献
6.
C. Anthony Di Benedetto 《Journal of Product Innovation Management》2004,21(3):153-153
7.
8.
Asses prices and investment were unusually weak throughout theindustrial world during the early 1990s. This paper highlightsthis stylized fact, and connects it with another: in most ofthe industrial world, asset markets boomed for several yearsbefore collapsing around 1989. The paper suggests that assetmarket bubbles during the late 1980s may have left the industrialworld with an 'asset market hangover' in the early 1990s, inthe form of sluggish asset markets and investment. Empiricalsupport for this hypothesis is provided based on cross-countrydata for equity and real estate markets in most industrial countries.We suggest that financial market developments not justifiedby fundamentals can substantially affect real activity. 相似文献
9.
In many previous rice trade models, the commodity has been regarded as a homogeneous product. However, homogeneity is not an appropriate assumption, given the various types of rice that are traded and consumed. Parameters estimated from these models, therefore, do not reflect the real world market for rice and, hence, may mislead decision makers who use the results for policy evaluation purposes. This study uses an Armington approach to model the world rice trade as a differential good market and to derive trade elasticity parameters. 相似文献
10.
The purpose of this paper is to analyze the impact of the Bank of Japan's official interventions on the JPY/USD parity during the period 1992–2004. The novelty of our approach is to combine two recent advances of the empirical literature on foreign exchange interventions: (i) drawing on over-the-counter option prices to characterize more precisely the distribution of market expectations; (ii) redefining interventions in terms of events as they tend to come in clusters. Moreover, in order to deal with the features of the data (small sample size, non-standard distribution), we use bootstrap tests.We show that interventions have a significant impact on the mean expectation (the forward rate). The results are more ambiguous for variance. Additionally, we find that the effect of interventions on skewness is significant, robust to different definitions of skewness, and consistent with the direction of interventions. On the contrary, our results clearly show that kurtosis is not affected by interventions. We finally show that: (i) coordination increases effectiveness of interventions; (ii) results are not altered when controlling for other economic and political news. 相似文献