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排序方式: 共有169条查询结果,搜索用时 93 毫秒
21.
Territorialization and state power in Thailand 总被引:1,自引:0,他引:1
22.
23.
There is increasing interest in the study of globalization on whether the emergence and consolidation of global value chains (GVCs) have exacerbated inequalities within and across nations and/or how GVCs may be leveraged to mitigate them. Although power asymmetries have been identified as a central factor shaping (un)successful GVC participation, dominant discourses still disregard the links between power and inequality or use these concepts interchangeably. In this article, we provide an analytical approach to GVC-related inequalities (within, along and through value chains) and examine how they may co-evolve with different types of power (bargaining, demonstrative, institutional and constitutive). We apply this approach to the case study of the hake value chain in South Africa to illustrate how existing inequalities are manifested, challenged, mitigated or exacerbated—and draw an agenda for future research. 相似文献
24.
The adaptive cluster sampling (ACS) is a suitable sampling design for rare and clustered populations. In environmental and
ecological applications, biological populations are generally animals or plants with highly patchy spatial distribution. However,
ACS would be a less efficient design when the study population is not rare with low aggregation since the final sample size
could be easily out of control. In this paper, a new variant of ACS is proposed in order to improve the performance (in term
of precision and cost) of ACS versus simple random sampling (SRS). The idea is to detect the optimal sample size by means
of a data-driven stopping rule in order to determine when to stop the adaptive procedure. By introducing a stopping rule the
theoretical basis of ACS are not respected and the behaviour of the ordinary estimators used in ACS is explored by using Monte
Carlo simulations. Results show that the proposed variant of ACS allows to control the effective sample size and to prevent
from excessive efficiency loss typical of ACS when the population is less clustered than anticipated. The proposed strategy
may be recommended especially when no prior information about the population structure is available as it does not require
a prior knowledge of the degree of rarity and clustering of the population of interest. 相似文献
25.
Stefano Monni 《AStA Advances in Statistical Analysis》2014,98(2):143-163
We propose a Bayesian method to select groups of correlated explanatory variables in a linear regression framework. We do this by introducing in the prior distribution assigned to the regression coefficients a random matrix $G$ that encodes the group structure. The groups can thus be inferred by sampling from the posterior distribution of $G$ . We then give a graph-theoretic interpretation of this random matrix $G$ as the adjacency matrix of cliques. We discuss the extension of the groups from cliques to more general random graphs, so that the proposed approach can be viewed as a method to find networks of correlated covariates that are associated with the response. 相似文献
26.
Stefano Basaglia Leonardo Caporarello Massimo Magni Ferdinando Pennarola 《Review of Managerial Science》2009,3(1):1-18
The present study integrates the technology acceptance and convergence streams of research to develop and test a model of
individual adoption of convergent mobile technologies. Adopting structural equation modelling, we hypothesize that relative
advantage, effort expectancy, social influence and facilitating conditions affect directly individual attitude and, indirectly
the intention to use convergent mobile technologies. The model explains a highly significant 53.2% of the variance for individual
attitude, while individual attitude accounts for 33.9% of the variance in behavioral intention.
Authors are listed alphabetically. 相似文献
27.
Stefano Bartolini Ennio Bilancini Francesco Sarracino 《Social indicators research》2013,114(2):169-191
Using longitudinal data from the German Socio-Economic Panel, we estimate the variation of subjective well-being experienced by Germans over the last two decades testing the role of some of the major correlates of people’s well-being. Our results suggest that the variation of Germans’ well-being between 1996 and 2007 is well predicted by changes over time of income, demographics and social capital. The increase in social capital predicts the largest positive change in subjective well-being. Income growth, also predicts a substantial change in subjective well-being, but it is compensated for about three fourths by the joint negative predictions due to income comparison and income adaptation. Finally, we find that aging of the population predicts the largest negative change in subjective well-being. This result appears to hinge on the large loss of satisfaction experienced by individuals in old age. 相似文献
28.
A multivariate time series model for the analysis and prediction of carbon monoxide atmospheric concentrations 总被引:2,自引:0,他引:2
Stefano F. Tonellato 《Journal of the Royal Statistical Society. Series C, Applied statistics》2001,50(2):187-200
We use a Bayesian multivariate time series model for the analysis of the dynamics of carbon monoxide atmospheric concentrations. The data are observed at four sites. It is assumed that the logarithm of the observed process can be represented as the sum of unobservable components: a trend, a daily periodicity, a stationary autoregressive signal and an erratic term. Bayesian analysis is performed via Gibbs sampling. In particular, we consider the problem of joint temporal prediction when data are observed at a few sites and it is not possible to fit a complex space–time model. A retrospective analysis of the trend component is also given, which is important in that it explains the evolution of the variability in the observed process. 相似文献
29.
Traditional models of input demand rely upon convex and symmetric adjustment costs. However, the fortune of this highly restrictive approach is due more to analytical convenience than to empirical relevance. In this note we examine the model under more realistic hypothesis of fixed costs, show that it can be cast in the form of a Double Censored Random Effect Tobit Model, derive its likelihood function, and finally evaluate the performance of the ML estimators through a Monte Carlo experiment. The performances, although strongly dependent on the degree of censoring, appear to be promising. 相似文献
30.
This paper explores the relationship among group control, financial reporting strategies and governance implications in the
pursuit of domestic tax planning. A very large number of papers deals with international tax planning in multidivisional enterprises,
but very few are devoted to exploring significant incentives for national business groups to engage in tax planning strategies.
In this paper we propose a one-period model relating to the tax incentives of income shifting in Italian business groups.
We show that, given the total amount of expected earnings before taxes and the dividends received by the firms belonging to
a business group, an optimal solution to the problem of minimizing the group tax burden exists. The optimal solution involves
a gain in value for the group as a whole; nevertheless, since in business groups ownership is often differentiated among shareholders
(often because of the separation between ownership and control), income shifting may determine wealth transfers, often in
favor of the controlling shareholder. We therefore analyze the management and governance implications of such income shifting,
for both shareholders and stakeholders (i.e. managers).
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献