نتایج جستجو برای: frontier function

تعداد نتایج: 1225506  

Journal: :Journal of the Northeastern Agricultural Economics Council 1980

2016
Souleymane Ouedraogo

The present paper seeks to deal with the issue of technical and economic efficiency of rice producers in the Kou valley, located in the region of the high basins in the western part of Burkina Faso. The stochastic frontier approach was used to estimate the production function, from a CobbDouglas stochastic frontier function and its dual which allow the estimation of the technical, allocative an...

Journal: :Operations Research 2012
Chien-Ming Chen Magali A. Delmas

Growing social concerns over the environmental externalities associated with business activities are pushing firms to identify activities that create economic value with less environmental impact and to become more eco-efficient. Over the past two decades, researchers have increasingly used frontier efficiency models to evaluate productive efficiency in the presence of undesirable outputs, such...

Journal: :J. Artif. Intell. Res. 2016
Simone Parisi Matteo Pirotta Marcello Restelli

Many real-world control applications, from economics to robotics, are characterized by the presence of multiple conflicting objectives. In these problems, the standard concept of optimality is replaced by Pareto–optimality and the goal is to find the Pareto frontier, a set of solutions representing different compromises among the objectives. Despite recent advances in multi–objective optimizati...

2000
Josep M. Argilés

This paper aims to estimate a translog stochastic frontier production function in the analysis of a panel of 150 mixed Catalan farms in the period 1989-1993, in order to attempt to measure and explain variation in technical inefficiency scores with a one-stage approach. The model uses gross value added as the output aggregate measure. Total employment, fixed capital, current assets, specific co...

2016
Ernst Eberlein Dilip B. Madan

Allowing for correlated squared returns across two consecutive periods, portfolio theory for two periods is developed. This correlation makes it necessary to work with non-Gaussian models. The two-period conic portfolio problem is formulated and implemented. This development leads to a mean ask price frontier, where the latter employs concave distortions. The modeling permits access to skewness...

Journal: :اقتصاد و توسعه کشاورزی 0
حبیب شهبازی احمد سام دلیری

introduction: in this study, total factor productivity growth components in rough rice production are assisting by econometric approach and stochastic frontier function during 2005-2013 for several provinces (mazandaran province, guilan province, golestan province, fars province, khoozestan province). according to food and agriculture organization statics, iran is the 3rd importer and 20th expo...

Journal: :کشاورزی (منتشر نمی شود) 0
علی محمد کیمیاگری استادیار، گروه مدیریت سیستم و بهره¬وری، دانشگاه صنعتی امیرکبیر، تهران آرمان تیموری دانشجوی کارشناس ارشد، دانشکده مهندسی صنایع، دانشگاه صنعتی امیرکبیر، تهران

for evaluation of efficiency and yield per surface unit with using the 56 sugar beet producer countries data in year 2005 an econometric model based on cols method has presented. with this model maximum sugar beet production efficiencies considering the harvested area and annual rainfall measure and level of mechanization has been determined. in total iran with production efficiency 0.43 is in ...

2010
MOHAMMAD AL-KHAWALDAH SALVATORE LIVATINO DAVID C. LEE

In this paper, a frontier-based technique is used with two cooperating mobile robots to explore unknown environment. The aim is to decrease the exploration time. The proposed frontier-based exploration algorithm is based on a new bidding function in which we introduced a special parameter to decrease the overlap between the robots in addition to the utility and cost parameters. Tens of thousand...

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