Parametric Analysis of Stochastic

Comparative Analysis of Stochastic Frontier Partially non-parametric and Stochastic Frontier Parametric Methods Case Study: Measuring Cost Efficiency in Wheat Production in Iran

Stochastic Non-Parametric Frontier Analysis

In this paper we develop an approach that synthesizes the best features of the two main methods in the estimation of production efficiency. Specically, our approach first allows for statistical noise, similar to Stochastic frontier analysis, and second, it allows modeling multiple-inputs-multiple-outputs technologies without imposing parametric assumptions on production relationship, similar to...

Application of DEA and SFA on the Measurement of Agricultural Technical Efficiency in MENA Countries

The purpose of this paper is to investigate the levels of technical efficiency in agricultural sector of MENA countries by using Data Envelopment Analysis (DEA) and Stochastic Frontier Analysis (SFA) approaches in 2007-2008. The results show that the total average of technical efficiency is as follows: DEABCC(0.770)>DEACCR(0.744)>SFA(0.479), and among all MENA countries, the best performanc...

Size, Fragmentation, and Inefficiency: A Single-Stage Stochastic Parametric Approach for Wheat Production in Iran

Although studies on the relation between size and efficiency are ample, studies on the relation between size, fragmentation, and efficiency are limited. It is the purpose of this study in which a single-stage stochastic parametric approach is used. For this purpose production of wheat in Iran is a good case because wheat is the core commodity of the Iranian agricultural system which is dominate...

Amelioration of Verdegay̕s approach for fuzzy linear programs with stochastic parameters

This article examines a new approach which solves Linear Programming (LP) problems with stochastic parameters as a generalized model of the fuzzy mathematical model analyzed by Verdegay. An expectation model is provided for solving the problem. A multi-parametric programming is applied to access to a solution with different desired degrees as well as problem constraints. Additionally, we presen...

تاثیر ریسک های اعتباری، عملیاتی و نقدینگی بر کارایی نظام بانکی ایران

This article basically tries to examine the relationship between efficiency and risk in Iranian banking system. The scholars here simply employ two approaches, i.e. parametric (economic-based) approach, and non-parametric (mathematical optimization-based) approach, to assess the efficiency, rank the banks, select the optimal model and at last, identify the impact of credit, operational and liqu...