نتایج جستجو برای: stochastic frontier production function

تعداد نتایج: 1874949  

2014

This study uses a generalized stochastic frontier framework to model a multiple-output rice production system and analyses farm-level technical inefficiency of rice farming in Assam, India. Primary data for this study was collected in 2009-2010 from 310 farm-households in four non-contiguous districts of Dhubri, Morigaon, Dibrugarh, and Cachar that are located in different agro-climatic regions...

In this paper, copulas and Archimediean copulas (especially with hyperbolic generator) are investigated and it is shown how to use this type of functions in the stochastic frontier analysis. Then we study the efficiency of hydropower plants located on prominent dams in Iran, and based on their performance in 1399 we use data envelopment analysis and stochastic frontier analysis and copulas func...

Journal: :Journal of dairy science 2006
L W Tauer A K Mishra

A stochastic cost equation was estimated for US dairy farms using national data from the production year 2000 to determine how farmers might reduce their cost of production. Cost of producing a unit of milk was estimated into separate frontier (efficient) and inefficiency components, with both components estimated as a function of management and causation variables. Variables were entered as im...

Journal: :international journal of environmental research 2010
e. pérez-calderón p. milanés-montero f.j. ortega-rossell

this study examines the responsible energy consumption of listed european hotels. hotel efficiency is estimated using a stochastic frontier analysis (sfa) production function, with supplies costs as the input and total revenue as the output. cluster analysis is used to group the hotels into homogeneous groups according to their efficiency level, size, or profitability. the results show that the...

2004
Antonio Alvarez Carlos Arias William Greene

This paper explores the role of unobserved managerial ability in production and its relationship with technical efficiency. Previous analyses of managerial ability have been based on strong assumptions about its role in production or on the use of proxies. We avoid these limitations by introducing managerial ability as an unobserved random variable in a translog production function. The resulti...

زیبایی, منصور , جعفری ثانی , مریم ,

While technical efficiencies of firms that are estimated with respect to a given frontier are comparable, this is not normally valid the case among firms that operate under different technologies. Such problem arises when comparisons of firms from different regions of country are involved. This study uses the concept of the metafrontier function to investigate regional differences in milk produ...

2015
Christine Amsler Christopher J. O’Donnell Peter Schmidt

We consider the case of production units arranged into a number of groups. All units within a group choose output-input combinations from the same production possibilities set, which is represented by a stochastic frontier model. The metafrontier is the envelope (over groups) of the group-specific frontiers. We are interested in the unit’s inefficiency relative to its group-specific frontier, b...

Journal: :European Journal of Operational Research 2012
Dimitris Giraleas Ali Emrouznejad Emmanuel Thanassoulis

This study presents some quantitative evidence from a number of simulation experiments on the accuracy of the productivity growth estimates derived from growth accounting (GA) and frontier-based methods (namely Data envelopment Analysis-, Corrected ordinary least squares-, and Stochastic Frontier Analysis-based Malmquist indices) under various conditions. These include the presence of technical...

Journal: :تحقیقات اقتصادی 0
زهرا منتظری دانشجوی کارشناسی ارشد دانشگاه آزاد اسلامی، واحد اصفهان (خوراسگان) همایون رنجبر استادیار دانشگاه آزاد اسلامی، واحد اصفهان (خوراسگان)، گروه اقتصاد، اصفهان، ایران مجید صامتی دانشیار دانشگاه آزاد اسلامی، واحد اصفهان (خوراسگان)، گروه اقتصاد، اصفهان، ایران

abstractgiven the importance of the notion of efficiency in the country's economic growth, measuring the efficiency and the technology gap for various industries in order to achieve the best possible resource assignment, following the declared policy goals, is of particular importance for those countries, such as iran, which are now at the early stages of the industrialization process. hen...

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