全文获取类型
收费全文 | 901篇 |
免费 | 32篇 |
专业分类
各国政治 | 72篇 |
工人农民 | 37篇 |
世界政治 | 86篇 |
外交国际关系 | 46篇 |
法律 | 440篇 |
中国政治 | 15篇 |
政治理论 | 228篇 |
综合类 | 9篇 |
出版年
2021年 | 3篇 |
2020年 | 11篇 |
2019年 | 16篇 |
2018年 | 18篇 |
2017年 | 29篇 |
2016年 | 22篇 |
2015年 | 23篇 |
2014年 | 17篇 |
2013年 | 150篇 |
2012年 | 26篇 |
2011年 | 28篇 |
2010年 | 24篇 |
2009年 | 25篇 |
2008年 | 22篇 |
2007年 | 23篇 |
2006年 | 30篇 |
2005年 | 28篇 |
2004年 | 24篇 |
2003年 | 25篇 |
2002年 | 23篇 |
2001年 | 13篇 |
2000年 | 14篇 |
1999年 | 12篇 |
1998年 | 10篇 |
1997年 | 22篇 |
1996年 | 10篇 |
1995年 | 18篇 |
1994年 | 13篇 |
1993年 | 15篇 |
1992年 | 14篇 |
1991年 | 18篇 |
1990年 | 4篇 |
1989年 | 12篇 |
1988年 | 12篇 |
1987年 | 12篇 |
1986年 | 17篇 |
1985年 | 14篇 |
1984年 | 18篇 |
1983年 | 7篇 |
1982年 | 13篇 |
1981年 | 15篇 |
1980年 | 15篇 |
1979年 | 8篇 |
1978年 | 8篇 |
1977年 | 4篇 |
1976年 | 10篇 |
1975年 | 9篇 |
1974年 | 7篇 |
1973年 | 9篇 |
1967年 | 2篇 |
排序方式: 共有933条查询结果,搜索用时 15 毫秒
931.
932.
Francisco Azpitarte 《European Journal of Law and Economics》2011,32(1):1-14
This paper analyzes the relationship between government size and the level of corruption. We propose a theoretical model where
production decisions and corrupt behavior are endogenously determined. We model corruption assuming production in the formal
sector is regulated by public officials who can use their public power for private gain. In this context, the underground
economy emerges as an outside option that allows entrepreneurs to avoid dealing with bureaucrats. The fact that investments
in the informal sector may influence public finances, introduces the possibility of multiple equilibria with different levels
of corruption. Consistent with previous theoretical works and recent empirical evidence, we find out that corruption and the
shadow economy are complements as they positively correlate across equilibria, which implies that corruption may limit the
size of the public sector. 相似文献
933.
The Office of the Chief Medical Examiner of Maryland recorded a total of 149 drug abuse deaths of teenagers aged 13-19 years between 1991 and 2006. Of these deaths, 96 (64.4%) were caused by the use of narcotic drugs only, 29 (19.5%) by both narcotics and cocaine, four (2.7%) by both narcotics and methylenedioxymethamphetamine, six (4.0%) by cocaine only, and 14 (9.4%) by volatile substances (e.g., butane, Freon, nitrous oxide, and propane). The annual death rate from drug abuse for teenagers increased from 1.4 deaths per 100,000 population in 1991 to 2.7 deaths per 100,000 population in 2006 (chi-square test for time trend, p<0.01). The increase in teenager drug abuse deaths occurred in 1999 and since has remained at a higher rate. Further analysis revealed that the increase in drug abuse deaths was attributable to a large degree to narcotic drugs, particularly heroin/morphine and methadone, and was confined to teenagers residing in the suburban and rural areas. 相似文献