The main objectives of this research were to measure the technical efficiency of green pepper production in the greenhouse and to examine the determinants of technical efficiency in the Mersin province of Turkey. Data envelopment analysis was used to measure technical efficiency. 102 randomly selected farmers were visited to obtained data belong to the 2015 -2016 production year. The results of the research showed that farmers may reduce their input use by 10.5% while maintaining current

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... ion under prevailing technology. The technical efficiency scores of the sample farms ranged from 0.748 to 1 (0.905 average). The variables of extension, off-farm income, cooperative partnership, credit usage, record keeping, and soil test positively affected technical efficiency. However, farm size had a negative relationship with efficiency. Therefore, this study proposes strategies such as providing better extension services, cred t serv ces, encouraging farmers to have agricultural insurance, soil tests, and co-operative formation, in order to improve technical efficiency.