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71.
Sun-Jae Hwang 《Journal of aging & social policy》2013,25(2):81-97
This study examines the redistributive effects of public pensions on old-age income inequality, testing whether public pensions function as the “great equalizer.” Unlike the well-known alleviating effect of public pensions on old-age poverty, the effects of public pensions on old-age income inequality more generally have been less examined, particularly outside Western countries. Using repeated cross-sectional data of elderly Koreans between 1998 and 2010, we applied Gini coefficient decomposition to measure the impact of various income sources on old-age inequality, particularly focusing on public pensions. Our findings show that, contrary to expectations, public pension benefits have inequality-intensifying effects on old-age income in Korea, even countervailing the alleviating effects of public assistance. This rather surprising result is due to the specific institutional context of the Korean public pension system and suggests that the “structuring” of welfare policies could be as important as their expansion for the elderly, particularly for developing welfare states. 相似文献
72.
ABSTRACT Data were collected from 40 youth and 37 caregivers, which represented 57 distinct youth and 20 youth–caregiver dyads to measure the level of agreement between youth self-report and their caregivers on a variety of topics. Topics included: the youth's past placements, service use and needs, experiences in the child welfare system, and the youth's emotional problems and social behaviors. Results indicated high agreement between youth and caregiver proxy related to placement history, service use, the restrictiveness of the current environment, and community safety; results indicated low levels of agreement for youth emotional difficulties and prosocial behaviors. Qualitative data were used to further identify some of the differences noted. Overall, the findings support prior research that shows higher agreement within youth–caregiver dyads for objective measures as opposed to subjective and private ones. Implications for future research are discussed, and methodological challenges related to this study are identified. 相似文献
73.
74.
In the field of financial time series, threshold-asymmetric conditional variance models can be used to explain asymmetric volatilities [C.W. Li and W.K. Li, On a double-threshold autoregressive heteroscedastic time series model, J. Appl. Econometrics 11 (1996), pp. 253–274]. In this paper, we consider a broad class of threshold-asymmetric GARCH processes (TAGARCH, hereafter) including standard ARCH and GARCH models as special cases. Since sample autocorrelation function provides a useful information to identify an appropriate time-series model for the data, we derive asymptotic distributions of sample autocorrelations both for original process and for squared process. It is verified that standard errors of sample autocorrelations for TAGARCH models are significantly different from unity for lower lags and they are exponentially converging to unity for higher lags. Furthermore they are shown to be asymptotically dependent while being independent of standard GARCH models. These results will be interesting in the light of the fact that TAGARCH processes are serially uncorrelated. A simulation study is reported to illustrate our results. 相似文献
75.
Common paths,divergent patterns: The social protection by other means approach in Australia and Japan 下载免费PDF全文
Gyu‐Jin Hwang 《International Journal of Social Welfare》2016,25(1):36-46
This article reports on a study of the welfare reform trajectories of two countries that are often identified in the literature as having institutional patterns of the ‘social protection by the other means’ approach. It is questioned in the article whether these two countries have undergone a converging reform trajectory against the increasing forces of economic liberalisation and whether their distinct ways of doing social policy have now come to an end. It argues that while both Australia and Japan have followed a similar neoliberal path in their social policy reform direction, the forms and patterns they have taken to follow have been distinct, largely aligned with the existing structure of social protection in each. Distinctive strategies of welfare adopted by each country have led to a divergent pattern in their way of doing social policy. 相似文献
76.
This study proposed and tested a multistage model of household response to three hazards—flood, hurricane, and toxic chemical release—in Harris County Texas. The model, which extends Lindell and Perry's (1992, 2004) Protective Action Decision Model, proposed a basic causal chain from hazard proximity through hazard experience and perceived personal risk to expectations of continued residence in the home and adoption of household hazard adjustments. Data from 321 households generally supported the model, but the mediating effects of hazard experience and perceived personal risk were partial rather than complete. In addition, the data suggested that four demographic variables—gender, age, income, and ethnicity—affect the basic causal chain at different points. 相似文献
77.
Leng-Cheng Hwang 《统计学通讯:理论与方法》2013,42(8):2293-2308
The problem considered is the Bayes sequential estimation of the mean with quadratic loss and fixed cost per observation. Assume the prior distribution is not completely known. Some empirical Bayes procedures are proposed in the Poisson and Bernoulli cases, and they are shown to be asymptotically non-deficient in the sense of Woodroofe (1981). 相似文献
78.
Tian-Xiao Pang Zheng-Yan Lin Kyo-Shin Hwang 《Journal of the Korean Statistical Society》2013,42(2):177-189
For a sequence of i.i.d. zero mean random variables belonging to the domain of attraction of the normal law, two results concerning the rescaled range statistic are investigated in this paper. More specifically, we obtain precise asymptotics in the law of the logarithm related to complete convergence and a.s. convergence under some mild conditions. 相似文献
79.
Tae Yoon Kim Jeongcheol Ha Sun Young Hwang Cheolyong Park Zhi‐Ming Luo 《Australian & New Zealand Journal of Statistics》2013,55(4):387-399
A reduced ‐statistic is a ‐statistic with its summands drawn from a restricted but balanced set of pairs. In this article, central limit theorems are derived for reduced ‐statistics under ‐mixing, which significantly extends the work of Brown & Kildea in various aspects. It will be shown and illustrated that reduced ‐statistics are quite useful in deriving test statistics in various nonparametric testing problems. 相似文献
80.
Eunju Hwang 《统计学通讯:理论与方法》2018,47(21):5378-5389
Tests for structural breaks in the coefficients of the long-memory heterogeneous autoregressive (HAR) models are developed. The tests are based on the partial sum process of the normalized efficient score vector. The tests have the nice property of identifying the parameters of the daily, weekly, and monthly regressors in which breaks occur. Limiting null distributions of the proposed tests are proven to be derived from standard Brownian bridges. A finite sample Monte-Carlo experiment shows reasonable size and power properties of the proposed tests. The proposed method is illustrated by a real data analysis. 相似文献