-in, extension activities and road density. R&D spill-in proxies were constructed based on both geographic proximity and production … profile to examine the sensitivity of the rates of return to these alternatives. We find that extension activities, road … local internal rates of return, although high, have declined through time along with investments in extension, while the …

Cost-effective extension strategies are needed to promote widespread adoption of agricultural technologies in … Department of Agricultural Extension and uses a linear programming model to examine alternative strategies to improve IPM …

agricultural extension and rural development. In the first place, a general view of the roles of intermediaries, as depicted in …