کارایی تکنیکی و ریسک تولید در مزارع پرورش ماهی سردآبی شهرستان کامیاران

Background: production risk and its impact on the efficiency of production units is one of the main issues in the farm management.objective:this studyreviews the relationship oftechnicalefficiency with production riskoffish farmsin thekamyarancounty.methods:required dataquestionnaireswere collected from 55farmsin the kamyaran.toachieve objective,study employed the stochastic frontiermodelwheretheproductionfunctions, risk and technicalinefficiencyis estimated simultaneously.results:resultsshowed that fish production is significantlyinfluenced by labor, fry and feed. feed and fry are found to be risk- increasing inputs and labor is revealed to be a risk- reducing inputs. furthermore, it is revealed thatlabor,experience, memberofthe cooperativeand frequency of participation intrainingsignificantly decreasestechnicalinefficiency of farmers. conculution:the estimated technicalefficiencyshowed that efficiency score(73%) is overstated when the estimating function is modeled withoutthe risk component. thereforeit would be better that in measuring of farm efficiency we also consider the farm production risk.