全文获取类型
收费全文 | 15140篇 |
免费 | 218篇 |
专业分类
各国政治 | 560篇 |
工人农民 | 1238篇 |
世界政治 | 736篇 |
外交国际关系 | 543篇 |
法律 | 8707篇 |
中国政治 | 42篇 |
政治理论 | 3459篇 |
综合类 | 73篇 |
出版年
2020年 | 80篇 |
2019年 | 103篇 |
2018年 | 1391篇 |
2017年 | 1329篇 |
2016年 | 1151篇 |
2015年 | 165篇 |
2014年 | 123篇 |
2013年 | 821篇 |
2012年 | 333篇 |
2011年 | 1066篇 |
2010年 | 1140篇 |
2009年 | 725篇 |
2008年 | 895篇 |
2007年 | 848篇 |
2006年 | 187篇 |
2005年 | 224篇 |
2004年 | 333篇 |
2003年 | 313篇 |
2002年 | 178篇 |
2001年 | 224篇 |
2000年 | 191篇 |
1999年 | 166篇 |
1998年 | 118篇 |
1997年 | 109篇 |
1996年 | 94篇 |
1995年 | 108篇 |
1994年 | 105篇 |
1993年 | 88篇 |
1992年 | 122篇 |
1991年 | 153篇 |
1990年 | 134篇 |
1989年 | 146篇 |
1988年 | 133篇 |
1987年 | 153篇 |
1986年 | 141篇 |
1985年 | 153篇 |
1984年 | 147篇 |
1983年 | 151篇 |
1982年 | 108篇 |
1981年 | 102篇 |
1980年 | 89篇 |
1979年 | 97篇 |
1978年 | 84篇 |
1977年 | 67篇 |
1976年 | 67篇 |
1975年 | 61篇 |
1974年 | 69篇 |
1973年 | 68篇 |
1972年 | 58篇 |
1969年 | 56篇 |
排序方式: 共有10000条查询结果,搜索用时 34 毫秒
891.
W. T. Harbaugh 《Public Choice》1996,89(1-2):63-76
Of those eligible, about 40% do not vote in presidential elections. When asked, about a quarter of those nonvoters will lie to the survey takers and claim that they did. Increases in education are associated with higher voting rates and lower rates of lying overall, but with increased rates of lying conditional on not voting. This paper proposes a model of voter turnout in which people who claim to vote get praise from other citizens. Those who lie must bear the cost of lying. The model has a stable equilibrium with positive rates of voting, honest non-voting, and lying. Reasonable parameter changes produce changes in these proportions in the same direction as the changes actually observed across education levels. I argue that a model where people vote because they want to be known as voters provides a better explanation for observed voting behavior than does a model where people vote because they want to vote. 相似文献
892.
Abstract. Values and ideologies seem to be changing rapidly in many countries of Western Europe. These developments imply a shift among the adherents of political parties. On the one hand, we expect to see a process of deideologization weakening the traditional ties between parties and their adherents. On the other hand, increasing pluralization is suggested by the ongoing process of individualization. In this study we analyze the orientations of the adherents of the main political parties in 12 Western European countries in the last two decades. We expect to find clear traces of ongoing deideologization as well as pluralization, but this expectation proves to be inaccurate. Neither deideologization nor pluralization can be accepted as a common feature of party adherents in advanced industrial societies. On the contrary. Each of these processes seems to follow a different path of development in distinct countries and in distinct party families. A general 'decline-of-the-party' or an 'end-of-ideology' is not to be found among the adherents of the main parties in Western Europe in the last decades. The processes appear to be more complicated, with divergent developments in different countries. 相似文献
893.
Marie Lynn Miranda Jess W. Everett Daniel Blume Barbeau A. Roy 《Journal of policy analysis and management》1994,13(4):681-698
Coalitions of free-marketeers, politicians, and environmentalists increasingly are turning to the use of market-based incentives in formulating environmental policy. One promising application of market-based incentives is in the management of residential municipal solid waste. This article focuses on unit-based pricing programs established in conjunction with community recycling programs. Using data gathered through telephone and mail surveys of 21 cities, we demonstrate the strong potential for unit pricing to improve the efficiency of residential solid waste management. 相似文献
894.
895.
896.
Gerald W. Scully 《Public Choice》1991,72(1):51-59
A measure of waste from the competitive rent-seeking activity of special interest groups in federal, state and local budgets was calculated over the period 1900–88. This period in U.S. fiscal history is characterized by constitutional changes that have made for more transparency in governmental fiscal activities and for greater diffusion of taxes. The XVI Amendment to the Constitution created the progressive individual income tax (the corporate income tax was judged to be an excise tax in 1909 and passed the test of constitutionality). High marginal tax rates are a justification for a high average level of taxation. The Full Employment Act of 1946 insitutionalized government deficits as a means of meeting a political objective. As a result, opportunities for rent-seeking through budgetary reallocations rose in the United States. In the first two decades of the 20th century, waste at all levels of government represented about 10 percent of incremental national output. Today, waste is three times that amount.The transparency and diffusion of taxes are highest at the federal level and least at the local level. Rent-seeking through budgetary reallocation has followed the public purse. One explanation for the observed centralization of government in the 20th century may be that opportunities to concentrate benefits and diffuse taxes are highest at the federal level. 相似文献
897.
898.
In recent yems, rapid growth hm occurred in both the number and diversity of university-industry progrmns in the United States. While little comprehensive assessment of these programs exists to date, this paper argues that a systematic empirical analysis of a cmpany's perception of universities as knowledge sources is critical toa clear understanding of the newallknces between industry and academia. From a survey of216 companies, a pattern emerges where the sources of technical knowledge perceived as important by industry are complex and highly interrelated, and they also vary according to the characteristics of companies, especially size. It is seen that university research rather than universities as institutions per se are critical ingredients to the development of new products and production processes. 相似文献
899.
W J Nelson 《Social security bulletin》1992,55(3):41-58
About 93.1 million workers were covered under workers' compensation laws in 1988--an increase of 11 percent from the 1984 total. Benefit amounts totaled $30.7 billion--an increase of about 56 percent since 1984. Of the total payments made under the workers' compensation program, $17.6 billion went to disabled workers, $1.6 billion to their survivors, and $11.5 billion for medical care. The Social Security Administration (SSA) is interested in measuring economic security in the United States, and workers' compensation plays a large role in that measurement. This article represents one part of our overall effort to determine the roles the various income-maintenance programs play in helping citizens of the United States achieve economic security. The figures presented here provide readers with an opportunity to review workers' compensation program operations during much of the 1980's. Workers' compensation is also important to SSA because that program is directly related to the Social Security Disability Insurance program. Since 1965, Social Security disability benefits have been subject to reduction if the beneficiary also receives workers' compensation and the combined benefits exceed 80 percent of previous earnings. In addition, SSA has been directly involved in providing income maintenance for disability from work-related diseases since 1969 when the Federal Black Lung benefits program was established. 相似文献
900.