Research returns redux: a meta-analysis of the returns to agricultural R&D

A total of 294 studies of returns to agricultural R&D (including extension) were compiled and these studies provide 1,858 separate estimates of rates of return. This includes some extreme values, which are implausible. When the highest and lowest 2.5 percent of the rates of return were set aside, th...

Full description

Bibliographic Details

Main Authors:	Alston, Julian M., Marra, Michele C., Pardey, Philip G., Wyatt, T. J.
Format:	Artículo preliminar
Language:	Inglés
Published:	International Food Policy Research Institute 1998
Subjects:	agricultural research
Online Access:	https://hdl.handle.net/10568/161247