%0 Report %9 Working Paper %@ No. 90 %A Nakano, Y %A Tsusaka, T W %A Aida, T %A Pede, V O %B JICA RI Working Paper %C Tokyo %D 2015 %F icrisat:9092 %I Japan International Cooperation Agency (JICA) Research Institute %K Technology adoption, Agricultural training, Social learning, Rice, Sub-Saharan Africa %T An Empirical Analysis of Expanding Rice Production in Sub-Sahara Africa, The Impact of Training on Technology Adoption and Productivity of Rice Farming in Tanzania: Is Farmer-to-Farmer Extension Effective %U http://oar.icrisat.org/9092/ %X How far can new technologies taught to a small number of selected farmers diffuse to other farmers in a village? In order to answer this question, this paper investigates the impact of JICA training on the adoption of rice cultivation technologies and productivity in an irrigation scheme in Tanzania. By using a unique five-year panel data set and spatial econometric techniques, we found that non-trained farmers learned new technologies from trained farmers through social networks and by observing their plots. As a result, the paddy yield of directly trained farmers increased from 3.1 tons per hectare in 2008 to 4.7 tons per hectare in 2012, while that of non-trained farmers increased from around 2.6 tons per hectare in 2008 to 3.7 tons per hectare in 2012.