Certified Organic Jasmine Rice Farms in Yasothon Province

The aim of this study is to measure and compare technical efficiency between conventional and certified organic jasmine rice farms. exploring factors affecting technical inefficiency on conventional and certified organic jasmine rice farms is also considered. Technical efficiency is measured by Stochastic Frontier Analysis (SFA) using Cobb-Douglas and translog model with half-normal distributional assumption as well as multiple regression is used for analysing factors affecting technical inefficiency. Crossectional data is randomly obtained from 330 farms in Yasothon province, which is consisted of 165 conventional farms and 165 certified organic farms. Data is collected in the crop year 2005/06. According to the results, labor, seed, and organic fertilizer are much more important factors on organic jasmine rice production than on conventional one. On the average, organic farms operate closer to production frontier than conventional farms do o