نتایج جستجو برای: douglas stochastic frontier model
تعداد نتایج: 2197867 فیلتر نتایج به سال:
Model uncertainty and efficiency measurement in stochastic frontier analysis with generalized errors
Abstract Advanced efficiency measurement methods usually fall within Stochastic Frontier Analysis (SFA), Data Envelopment (DEA), or their derivatives. Although SFA has some theoretical advantages, it been criticized for relying on arbitrary and potentially restrictive assumptions about model specification. One strand of the literature suggests use nonparametric SF models to cope with issue. We ...
The most commonly used approaches to parametric (stochastic frontier) analysis of efficiency in panel data, notably the fixed and random effects models, fail to distinguish between cross individual heterogeneity and inefficiency. This blending of effects is particularly problematic in the World Health Organization's (WHO) panel data set on health care delivery, which is a 191 country, 5-year pa...
Introduction: The impact of Fadama III programme on the efficiency levels farmers in Kogi state, Nigeria was investigated.
 Materials and methods: Primary data were obtained with a questionnaire administered to 382 respondents selected through stratified random sampling procedure. Cobb-Douglas stochastic frontier production cost functions employed analyses. resulting estimates for benefici...
Productive efficiency for Chinese hybrid and conventional rice production is estimated using a dual stochastic frontier efficiency decomposition model. Results reveal significant differences in technical and allocative efficiency between conventional and hybrid rice production, and indicate significant regional efficiency differences in hybrid rice production, but not in conventional rice produ...
short-selling prohibition has been one of the primary assumptions of markowitz mean-variance model. solving markowitz quadratic model creates investment efficient frontier by considering only two return and budget constraints. in order to develop a more realistic portfolio selection model, in this paper, a new mathematical model is developed to allow short-selling under some practical constrain...
in order to study the effective factors in sugar beet production, evaluation of technical, allocative and economical efficiency of sugar beet producers in bardsir city, 150 sugar beet producers were questioned by classified method. data were collected through questionnaire forms filled by producers in 2004-05. the stochastic frontier production and cost function method were used to analyze the ...
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