Farmers’ trust in extension staff may improve the performance of agricultural extension services and productivity through transferred knowledge and new farming practices. Using the trust game and trust questionnaire, this study measured farmers’ trust in extension staff. Measures obtained from the two methods were statistically different. We examined the relationship between the measured trust and agricultural productivity to, controlling control for socio-economic factors. The findings revealed an insignificant relationship between trust and productivity that might be due to inappropriate attributes of extension programs. This emphasizes the need for more participation of farmers in researching and structuring training programs. While age had a negative impact on trust, farmers with high experiences showed a high level of trust. This indicates that old farmers who mostly inherited their lands from their grand parentsgrandparents and have occupations other than farming do not trust the extension stuff. Farm size positively influences productivity by reducing the number of laborers per hectare. This emphasizes that the traditional way of farming is the cause of low productivity in Iranian agriculture.

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