全文获取类型
收费全文 | 2150篇 |
免费 | 89篇 |
国内免费 | 1篇 |
专业分类
管理学 | 421篇 |
民族学 | 13篇 |
人口学 | 172篇 |
丛书文集 | 10篇 |
理论方法论 | 149篇 |
综合类 | 77篇 |
社会学 | 842篇 |
统计学 | 556篇 |
出版年
2023年 | 35篇 |
2022年 | 25篇 |
2021年 | 21篇 |
2020年 | 46篇 |
2019年 | 65篇 |
2018年 | 125篇 |
2017年 | 162篇 |
2016年 | 140篇 |
2015年 | 74篇 |
2014年 | 97篇 |
2013年 | 313篇 |
2012年 | 157篇 |
2011年 | 87篇 |
2010年 | 83篇 |
2009年 | 71篇 |
2008年 | 83篇 |
2007年 | 65篇 |
2006年 | 88篇 |
2005年 | 69篇 |
2004年 | 58篇 |
2003年 | 44篇 |
2002年 | 54篇 |
2001年 | 34篇 |
2000年 | 38篇 |
1999年 | 15篇 |
1998年 | 7篇 |
1997年 | 6篇 |
1996年 | 9篇 |
1995年 | 7篇 |
1994年 | 10篇 |
1992年 | 5篇 |
1991年 | 9篇 |
1989年 | 9篇 |
1986年 | 5篇 |
1984年 | 4篇 |
1983年 | 6篇 |
1982年 | 6篇 |
1981年 | 4篇 |
1980年 | 4篇 |
1976年 | 5篇 |
1975年 | 4篇 |
1974年 | 4篇 |
1973年 | 5篇 |
1972年 | 4篇 |
1971年 | 5篇 |
1970年 | 8篇 |
1969年 | 9篇 |
1968年 | 9篇 |
1967年 | 4篇 |
1966年 | 9篇 |
排序方式: 共有2240条查询结果,搜索用时 562 毫秒
1.
Generally, the semiclosed-form option pricing formula for complex financial models depends on unobservable factors such as stochastic volatility and jump intensity. A popular practice is to use an estimate of these latent factors to compute the option price. However, in many situations this plug-and-play approximation does not yield the appropriate price. This article examines this bias and quantifies its impacts. We decompose the bias into terms that are related to the bias on the unobservable factors and to the precision of their point estimators. The approximated price is found to be highly biased when only the history of the stock price is used to recover the latent states. This bias is corrected when option prices are added to the sample used to recover the states' best estimate. We also show numerically that such a bias is propagated on calibrated parameters, leading to erroneous values. The Canadian Journal of Statistics 48: 8–35; 2020 © 2019 Statistical Society of Canada 相似文献
2.
3.
H. Küchenhoff 《Statistical Papers》1995,36(1):41-47
The simple logistic regression model with normal measurement error and normal regressor is shown to be identifiable without any extra information about the measurement error. The multiple logistic regression model with more than one regressor variable measured with error is not identifiable. If the covariance matrix of the measurement error is known up to a scalar factor, the model is identified. Further we discuss why in spite of the identifiability the models cannot be estimated in a reasonable way without extra information about the measurement error. 相似文献
4.
5.
Margrit Brückner 《European Journal of Social Work》2002,5(3):269-276
Living in gendered societies makes it necessary to take into account the specific ways in which social problems and social issues affect the lives of women and men, girls and boys. Not only are social problems and social issues very often gender biased; this is also true for the professions dealing with these problems and issues, and for the training programmes for professions like social work. Sociological analysis of society and philosophical understanding of a good life are permeated by gender-specific perceptions -- often without those involved being aware of them. Furthermore, social policies reinforce gender-specific biases because they are based on gender-specific (i.e. male) standards. Gender as an analytical category has been brought into scientific and public discourse by feminist theoreticians and activists making women -- and thus also men -- visible with regard to structure and subject issues. The development of gender theory and research highlights the significance of gender arrangements to understand social phenomena and to support gender-equality ways of thinking and policies. At the same time, men and women are not only confronted with gendered structures, but via socialization processes and personal development they also reproduce these gender differences in their daily lives by 'doing gender'. 相似文献
6.
7.
Günter F. Müller 《Gruppendynamik und Organisationsberatung》2005,36(3):325-334
This paper outlines the conceptual bases, strategies, and psychological attributes of leadership by self-leadership. In addition, relations to other theories of leadership are drawn. Dimensions and correlates of self-leadership competence are described and discussed. Various approaches for developing self-leadership competence are discussed as well. 相似文献
8.
9.
The Measurement of Multidimensional Poverty 总被引:14,自引:0,他引:14
Many authors have insisted on the necessity of defining poverty as a multidimensional concept rather than relying on income or consumption expenditures per capita. Yet, not much has actually been done to include the various dimensions of deprivation into the practical definition and measurement of poverty. Existing attempts along that direction consist of aggregating various attributes into a single index through some arbitrary function and defining a poverty line and associated poverty measures on the basis of that index. This is merely redefining more generally the concept of poverty, which then essentially remains a one dimensional concept. The present paper suggests that an alternative way to take into account the multi-dimensionality of poverty is to specify a poverty line for each dimension of poverty and to consider that a person is poor if he/she falls below at least one of these various lines. The paper then explores how to combine these various poverty lines and associated one-dimensional gaps into multidimensional poverty measures. An application of these measures to the rural population in Brazil is also given with poverty defined on income and education. 相似文献
10.