全文获取类型
收费全文 | 3010篇 |
免费 | 82篇 |
专业分类
财政金融 | 449篇 |
工业经济 | 132篇 |
计划管理 | 526篇 |
经济学 | 625篇 |
综合类 | 9篇 |
运输经济 | 18篇 |
旅游经济 | 35篇 |
贸易经济 | 531篇 |
农业经济 | 111篇 |
经济概况 | 614篇 |
邮电经济 | 42篇 |
出版年
2021年 | 28篇 |
2020年 | 47篇 |
2019年 | 62篇 |
2018年 | 81篇 |
2017年 | 91篇 |
2016年 | 80篇 |
2015年 | 56篇 |
2014年 | 97篇 |
2013年 | 331篇 |
2012年 | 122篇 |
2011年 | 133篇 |
2010年 | 111篇 |
2009年 | 124篇 |
2008年 | 109篇 |
2007年 | 126篇 |
2006年 | 117篇 |
2005年 | 106篇 |
2004年 | 76篇 |
2003年 | 74篇 |
2002年 | 60篇 |
2001年 | 55篇 |
2000年 | 49篇 |
1999年 | 42篇 |
1998年 | 41篇 |
1997年 | 43篇 |
1996年 | 30篇 |
1995年 | 22篇 |
1994年 | 17篇 |
1993年 | 33篇 |
1992年 | 27篇 |
1991年 | 28篇 |
1990年 | 23篇 |
1989年 | 32篇 |
1988年 | 21篇 |
1987年 | 23篇 |
1986年 | 21篇 |
1985年 | 26篇 |
1984年 | 22篇 |
1983年 | 31篇 |
1982年 | 32篇 |
1981年 | 20篇 |
1980年 | 28篇 |
1979年 | 25篇 |
1978年 | 22篇 |
1977年 | 14篇 |
1975年 | 18篇 |
1973年 | 15篇 |
1971年 | 13篇 |
1967年 | 12篇 |
1963年 | 15篇 |
排序方式: 共有3092条查询结果,搜索用时 15 毫秒
101.
Namibia has a long history of providing a universal and non-contributory old age pension, child grants using means testing and quasi-conditionalities, and other cash transfers. Multivariate analysis presented in this paper confirms that these transfers play an important role in alleviating poverty, especially for the very poor. The poverty-reducing effects of the child grants are likely to increase further as access is being rapidly expanded. However, the impact in terms of reducing Namibia's extremely high inequality is limited. The targeting of the cash transfers towards the poorest groups takes place through two main channels. For the child grant, targeting occurs as a result of the orphan status eligibility criteria, as orphans are over-represented in lower-income households. For the universal social pension, it appears that some of the relatively less poor do not receive it even if they are eligible. Means testing of child grants appears ineffective, even without considering administrative costs. 相似文献
102.
Horst Braunwarth/Dirk Meyer 《Heilberufe》2009,61(12):41-43
Wundumgebung und Wundauflagen - Die wundumgebende Haut, sofern sie intakt
ist, hat eigentlich keinen direkten Einfluss auf die Wundheilung, da aber die Wundauflagen
oder der Sekund?rverband auf der wundumgebenden Haut fixiert wird, ist die
Beurteilung und Schutz dieser Hautareale für die Wundheilung von Bedeutung. 相似文献
103.
104.
105.
Elke Huyghe Anneleen Van Kerckhove 《International Journal of Research in Marketing》2013,30(4):421-423
Consumers prefer bonus packs, as opposed to price discounts, for healthy foods, but they want a price discount rather than a bonus pack for indulgent foods (Mishra & Mishra, 2011). This study conceptually replicates and extends this finding to show that consumers are more responsive to changes in price than to changes in package size for indulgent food options, whereas they are more responsive to changes in package size than to changes in price for healthy food options. 相似文献
106.
Ingo Geishecker Philipp J. H. Schröder Allan Sørensen 《Review of World Economics》2017,153(2):327-351
Two decades of research have established pronounced exporter productivity premia (EPP) and exporter size premia (ESP). Yet, we do not know why such exporter premia differ so widely in magnitude across countries or sectors? We take this question to the theory and to the data. We derive the sectoral EPP and ESP in a standard heterogeneous firms trade model and apply the insights from the model to guide our empirical investigation of detailed Danish firm-level data. We show that a significant share of the observed variation in EPP and ESP across sectors can be accounted for by sector differences in the underlying variation in productivity dispersion, variable trade costs, the ratio of fixed export costs to fixed costs of production, and the elasticity of demand. 相似文献
107.
We examine the welfare effects of partisanship in a model of checks and balances. An executive makes a policy proposal and an overseer then decides whether or not to veto the executive's proposal. Both the executive and the overseer have private information as to the correct policy to pursue, and both are motivated by the desire to appear competent. A partisan overseer is one who, in addition to seeking to promote her own reputation, cares how her decision will impact the executive's reputation. Our main result is that partisanship can improve the efficacy of an oversight regime, as the distortions caused by a partisan overseer's desire to affect the executive's reputation can offset the distortions caused by her desire to enhance her own. Our results provide a new rationale for divided government, as partisan considerations are often necessary to prevent the overseer from rubber stamping all executive proposals. 相似文献
108.
109.
The paper analyzes the guarantee of the Federal National Mortgage Association (FNMA). Rather than try to price the guarantee, we used time-series estimates of its value from Kane and Foster to infer the behavior of FNMA in exploiting the guarantee. The results are consistent with a model that predicts that FNMA does not take as much risk as it might. Rather, it trades off risk and return, but it does increase risk and exploit the guarantee when it gets in trouble (as it did in 1981).We have received helpful research assistance from Peter Carr and Bruno Gerard. 相似文献
110.
Loan Loss Severity and Optimal Mortgage Default 总被引:2,自引:0,他引:2
This paper tests the contingent claims model of mortgage default in its ruthless or frictionless form. The principal tests of the model are based on an unconventional source of data, namely, loan loss severities on defaulted mortgages. The frictionless model has well-defined predictions about loss severities which we test in detail. The data analyzed include a random sample of all mortgages originated during the period 1975–90 and purchased by Freddie Mac, as well as the loss severities on all mortgages purchased by Freddie Mac which defaulted during the period. The frictionless model does not do well in these tests. 相似文献