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991.
992.
Nina Meinel 《AStA Advances in Statistical Analysis》2009,93(2):159-174
For multivariate probit models, Spiess and Tutz suggest three alternative performance measures, which are all based on the
decomposition of the variation. The multivariate probit model can be seen as a special case of the discrete copula model.
This paper proposes some new measures based on the value of the likelihood function and the prediction-realization table.
In addition, it generalizes the measures from Spiess and Tutz for the discrete copula model. Results of a simulation study
designed to compare the different measures in various situations are presented. 相似文献
993.
994.
Reliability sampling plans provide an efficient method to determine the acceptability of a product based upon the lifelengths
of some test units. Usually, they depend on the producer and consumer’s quality requirements and do not admit closed form
solutions. Acceptance sampling plans for one- and two-parameter exponential lifetime models, derived by approximating the
operating characteristic curve, are presented in this paper. The accuracy of these approximate plans, which are explicitly
expressible and valid for failure and progressive censoring, is assessed. The approximation proposed in the one-parameter
case is found to be practically exact. Explicit lower and upper bounds on the smallest sample size are given in the two-parameter
case. Some additional advantages are also pointed out. 相似文献
995.
996.
997.
Matteo Bassoli 《Voluntas: International Journal of Voluntary and Nonprofit Organizations》2017,28(3):1135-1156
This article analyses the role of organizations’ ideological affiliation in shaping information networks within civil society and in granting access to the political sphere. It investigates whether the Catholic and Leftist affiliation of organizations impacts in the city of Turin (Italy) and Kielce (Poland). Applying different social network analysis techniques, the article finds that in both cities there is a tendency towards preferring similar partners. However, while the influence of affiliation is relevant to predict the access to policy making in Turin, in Kielce, this influence is mediated by the actor’s centrality in the social sphere. In both cities, networks are characterized by the higher centrality of Catholic organizations, which also translate in a greater involvement in the political sphere. Twenty-five years after the end of the cold war, past-affiliation is still a strong predictor of political involvement and impacts on the shape of local governance structure. 相似文献
998.
People with disability are particularly exposed to poor living conditions: on one hand they have more difficulties in getting
an income cause to their inabilities, on the other hand conditions of poverty increase the risk of disability. However, little
rigorous quantitative research has been undertaken to measure the real impact of disability on poverty. Methods based on monetary
set (income and consumption) may not reflect the real possibility to convert resources into the fulfilment of personal goals.
The capability approach, developed by A. K. Sen, offers a useful framework for the evaluation and assessment of individual
well-being considering both monetary and non-monetary resources. The study describes a methodology, derived from the capability
approach, to estimate the additional income needed for various types of household with and without disabled members to ensure
the same satisfaction with economic resources. The method has been applied to the Italian contest, where 2.6 million people
with disability live, and then the results are compared with the findings from an analogous study conducted in UK. The study
reveals that disabled people in Italy need an income level two times higher to enjoy the same level of economic satisfaction,
while in UK 50% of extra resource are sufficient. The findings suggests that traditional evaluations based on consumption
lead to an underestimation of the needs of household containing disabled members. It follows that the financial benefits envisaged
by actions planned by government through current instruments may not be completely effective. 相似文献
999.
Volkhard Krech Jens Schlamelcher Markus Hero 《KZfSS K?lner Zeitschrift für Soziologie und Sozialpsychologie》2013,65(1):51-71
The article examines different forms of institutionalization of religion in Germany since the 1950s. Going beyond the classical church-sect dichotomy, we discuss in a theoretical part communities, organizations, market relations, movements and events as possible candidates for the structuring of religious communication. In an empirical part, we outline recent changes of social forms in Germany. By addressing divergent trajectories in the major German churches, smaller Christian denominations, immigrant religions and the evolving spectrum of new religiosity, we show that a general trend is not observable. The developments do not prove the often claimed ‘end of religious communities’. It rather seems that modernity produces a variety of religious social forms that seem to balance the tension between communalization (Vergemeinschaftung) and socialization (Vergesellschaftung). 相似文献
1000.