全文获取类型
收费全文 | 655篇 |
免费 | 50篇 |
专业分类
各国政治 | 60篇 |
工人农民 | 28篇 |
世界政治 | 77篇 |
外交国际关系 | 23篇 |
法律 | 381篇 |
中国政治 | 7篇 |
政治理论 | 124篇 |
综合类 | 5篇 |
出版年
2024年 | 1篇 |
2023年 | 13篇 |
2022年 | 1篇 |
2021年 | 11篇 |
2020年 | 25篇 |
2019年 | 23篇 |
2018年 | 20篇 |
2017年 | 31篇 |
2016年 | 41篇 |
2015年 | 30篇 |
2014年 | 35篇 |
2013年 | 140篇 |
2012年 | 41篇 |
2011年 | 24篇 |
2010年 | 16篇 |
2009年 | 11篇 |
2008年 | 26篇 |
2007年 | 28篇 |
2006年 | 19篇 |
2005年 | 21篇 |
2004年 | 19篇 |
2003年 | 17篇 |
2002年 | 16篇 |
2001年 | 11篇 |
2000年 | 15篇 |
1999年 | 9篇 |
1998年 | 6篇 |
1997年 | 5篇 |
1996年 | 5篇 |
1995年 | 6篇 |
1994年 | 2篇 |
1993年 | 5篇 |
1992年 | 5篇 |
1991年 | 2篇 |
1990年 | 3篇 |
1989年 | 2篇 |
1988年 | 1篇 |
1987年 | 1篇 |
1986年 | 2篇 |
1985年 | 1篇 |
1984年 | 1篇 |
1983年 | 3篇 |
1982年 | 1篇 |
1981年 | 2篇 |
1978年 | 2篇 |
1975年 | 2篇 |
1973年 | 2篇 |
1970年 | 1篇 |
1965年 | 1篇 |
排序方式: 共有705条查询结果,搜索用时 265 毫秒
121.
The inefficiency of cooperative agriculture relative to private farms is often attributed to difficulties in monitoring or poor incentives. We develop a model to show that, in technologies with numerous sequential steps, even small shortfalls in worker effort can result in large output declines. Using data on cooperative and private farms in El Salvador, we find greater shortfalls in efficiency between cooperatives and private farms, as well as among cooperatives, for coffee, a crop requiring numerous steps in its cultivation, than for maize and sugar, which require fewer steps. Thus the undersupply of effort in cooperatives may be less than differences in productivity suggest, and cooperative agriculture is most likely to be successful where production does not involve many sequential steps. 相似文献
122.
John E. Peters André Snyders Tito Mboweni Garth le Pere Roger Levermore Doug Brooks 《South African Journal of International Affairs》2013,20(1):223-257
Ackerman B &; A Alstott, The Stakeholder Society. New Haven and London: Yale University Press, 1999. 296pp. ISBN: 0–300–07826. US$26.00. http://www.yale.edu/yup Adedeji A (ed.), Comprehending and Mastering African Conflicts: The Search for Sustainable Peace and Good Governance. London: Zed Books, in association with the African Centre for Development and Strategic Studies, Ijebu‐Ode, 1999. 377pp. ISBN: 1–85649–763–1. US$27:50. http://www.zedbooks.demon.co.uk Berkovitch N, From Motherhood to Citizenship: Women's Rights and International Organisations. Baltimore: The Johns Hopkins University Press, 1999. 207pp. ISBN: 0–8018–6028–8. US$34.95. http://www.press.jhu.edu/ press/index.html Bourgia R &; SG Miller (eds), In the Shadow of the Sultan: Culture, Power and Politics in Morocco. Massachussets: Harvard University Press, 1999. 310pp. ISBN 0–932885–20–9. £12.50. http://www.hup.harvard.edu Cohen R &; Westbrook R (eds.), Armana Diplomacy . Baltimore: John Hopkins University Press, 2000. 307pp. ISBN: 0–8018–6199–3. US$57.00. http://www.press.jhu.edu Cullather N, Secret History: The CIA's Classified Account of its Operations in Guatemala. Stanford: Stanford University Press, 1999. 142pp. ISBN: 0–8047–3311–2. US$39.50. http://www.sup.org De Cerreno ALC &; A Keynan, Scientific Co‐operation, State Conflict: The Roles of Scientists in Mitigating International Discord. Edited conference papers published as Volume 866 of Annals of the New York Academy of Sciences. New York, 1999, 281 pp, ISBN: 1 57331 203 7, US$27,00. Http://www.press.jhu.edu Donoso BP, Across the Footsteps of Africa: The Experiences of an Ecuadorian Doctor in Malawi and Mozambique. Trenton: Africa World Press, 1999, 242pp. ISBN: 0–86543–640–1. US$19.95. http.//www.africanword.com Drèze J, The Economics of Famine, An Elgar Reference Collection, Cheltenham, UK: Edward Elgar, 1999. pp. 524. ISBN: 1–85898–689–3. £130. http://www.e‐elgar.co.uk Emmett T, ‘A study of the development of a movement of national liberation in Namibia, between 1915 and 1966’, in Popular Resistance and the Roots of Nationalism in Namibia, 1915–1966. Basel, Switzerland: P Schlettwein Publishing, 1999. 420pp. ISBN: 3–908193–03–6. Swiss F55. http://www.baslerafrika.ch/bns.htm Gaubatz K T, Elections and War: The Electoral Incentive in the Democratic Politics of War and Peace. Stanford, California: Stanford University Press, 1999. 208pp. ISBN: 08047–3566–2. US$45.00. http://www.sup.org Hawken P, Lovins AB &; LH Lovins, Natural Capitalism: The Next Industrial Revolution. London: Earthscan Publications Ltd, 1999. 396pp. ISBN: 1–85383–461–0. £18.99. http://www.earthscan.co.uk Herbst J, States and Power in Africa: Comparative Lessons in Authority and Control. Princeton: Princeton University Press, 2000, 280pp. ISBN: 069–10–10285. US$17.95. http://www.pupress.princeton.edu Jett DC, Why Peacekeeping Fails. New York: St Martin's Press, 2000, 236pp. ISBN: 031–22269–85. US$49.95. http://www.stmartins.com Hodgson G, Evolution and Institutions: On Evolutionary Economics and the Evolutions of Economics . Cheltenham: Edward Elgar, 1999. 345pp. ISBN: 1–85898–813–6. £55.00. http://www.e‐elgar.co.uk Guha S, Environment and Ethnicity in India: 1200–1991. Cambridge: Cambridge University Press, 1999. 217pp. ISBN: 0–521–64078–4. £35.00. http://www.cup.cam.ac.uk Iheduru OM, The Politics of Economic Restructuring and Democracy in Africa. London: Greenwood Press,1999. 169 pp. ISBN: 0–313–30833–0. £37.50. http://www.greenwood.com Jain PC, Indians in South Africa: Political Economy of Race Relations. Delhi: Kalinga Publications, 1999. 175 pp. ISBN: 81–85163–102‐X. US$80.00. Kathadra A, Letters from Robben Island: A Selection of his Prison Correspondence, 1964–1989. Bellville and East Lansing: Mayibuye Books and Michigan State University Press, 1999. 263pp. ISBN: 087–01352–79 R120.00. http://www.msu.edu/unit/msupress/index.htm Middleton N &; D Thomas (eds), World Atlas of Desertification. United Nations Environment Programme, 2nd edition. London: Arnold, 1997.182pp. ISBN: 0–340–69166–2. http://www.unep.org 相似文献
123.
This study examines capital accumulation and growth among subcontracting small‐scale textile firms. We find that, in spite of the higher average profitability of non‐subcontracting production relative to subcontracting, the average annual rate of capacity expansion between the two groups is not statistically different from the former. This implies that the higher average productive capacity of the non‐subcontractors relative to that of the subcontracting firms are due to differences in their initial capacity. The study further suggests that there may be no easy transition from subcontracting to independent production. For many subcontractor firms in the sample, the cost of inputs required for independent production exceeds the current value of their gross earnings by a multiple. 相似文献
124.
Forensic Facial Comparison: Issues of Admissibility in the Development of Novel Analytical Technique
Much contemporary debate in forensic science concerns validity and admissibility of scientific evidence in court. In this paper, three current approaches to facial identification—image superimposition, photogrammetry, and morphological analysis—are considered with regard to criteria for scientific evidence in the United States, and England, and Wales. The aim of the paper is to assess the extent to which facial image comparison meets criteria of admissibility in these jurisdictions. The method used is a comparative evaluation of the methods of facial image comparison and their underlying premises against the range of admissibility criteria reported in court rulings and relevant judicial and scientific inquiries in the United States and the United Kingdom. While the techniques of facial image comparison are generally accepted within their practitioner communities, they are not tested, and their error rates are unknown. On that basis, the methods of facial image comparison would appear not to meet the anticipated standards. They are, nevertheless, admitted in court in the United States, and England, and Wales. This paper concludes that further research in science and law will be necessary to more definitively establish admissibility of facial image comparison evidence, as it will for other nascent and novel methods that are potentially influential in court proceedings. 相似文献
125.
Daniel Ramos Ph.D. Joaquin Gonzalez‐Rodriguez Ph.D. Grzegorz Zadora Ph.D. Colin Aitken Ph.D. 《Journal of forensic sciences》2013,58(6):1503-1518
Performance of likelihood ratio (LR) methods for evidence evaluation has been represented in the past using, for example, Tippett plots. We propose empirical cross‐entropy (ECE) plots as a metric of accuracy based on the statistical theory of proper scoring rules, interpretable as information given by the evidence according to information theory, which quantify calibration of LR values. We present results with a case example using a glass database from real casework, comparing performance with both Tippett and ECE plots. We conclude that ECE plots allow clearer comparisons of LR methods than previous metrics, allowing a theoretical criterion to determine whether a given method should be used for evidence evaluation or not, which is an improvement over Tippett plots. A set of recommendations for the use of the proposed methodology by practitioners is also given. 相似文献
126.
José Fabián Ruiz 《Boletín mexicano de derecho comparado / Instituto de Investigaciones Jurídicas, UNAM》2013,46(136):239-285
The objective of this paper is to analyze the relation between the concept of the Rule of Law and the culture of legality from a compared approach in order to establish the scope and limitations of explanations that are based in cultural factors. More specifically, we are interested in comparing the scope and limitations of culture-based explanations on why the Rule of Law prevails in certain countries: these explanations are centered in the construction of wide agreements between social actors and the control by civil society. Also we consider equally important the comparing of different definitions of culture of legality and the strategies and instruments that allow its construction. For this purpose we will center, specially, in the experiences of Hong Kong, Palermo and Bogotá. 相似文献
127.
128.
This paper analyzes the impact of economic performance on voter turnout. We estimate an economic turnout model in which local economic variables are included in quadratic form, so that non-linear effects can be taken into account. We use panel datasets covering municipalities, from 1979 to 2005, and cross-sections of parishes (freguesias) to analyze the determinants of turnout at Portuguese municipal and legislative elections. The empirical results indicate that the performance of the national economy is important only in legislative elections and that the regional and local unemployment rates tend to have non-linear relationships to turnout. The results obtained for Flemish municipalities also provide evidence in favor of a non-linear effect of unemployment on turnout. 相似文献
129.
When and why are cabinet ministers forced out of office? We argue that ministerial resignations cannot be understood as mechanistic consequences of serious personal or departmental errors as the classical responsibility hypothesis implies. Rather, they follow a systematic political logic. Cabinet ministers have to resign whenever the prime minister perceives the political costs of a minister staying in office to be higher than the benefits of keeping the status quo. We test this argument with resignation events in Germany in the period 1969 to 2005. Based on detailed data collection, we find 111 resignation events, i.e. serious public discussions about a cabinet minister's future, 14 of which ended in resignation. These data are analysed employing statistical as well as Qualitative Comparative Analysis based on Boolean algebra to detect patterns of ministerial resignations. 相似文献
130.
We analyse how forced displacements caused by violent conflict are related to the wages of workers in Colombia. Using data from the Quality of Life Survey (2011–2014), we analyse the differences in wages between those forced by violence to move to other regions, and those who moved for other reasons. We apply Propensity Score Matching techniques to compare workers from the two groups, finding that forced displacement is related to decreases of between 10 and 29 per cent in the wages of males, and between 18 and 37 per cent in the wages of females, relative to their counterparts. Thus, forced displacements are related to poorer labour market outcomes in terms of wages. 相似文献