Lack of information on innovative agricultural technologies continue to be a major constrain and cause of low technology adoption and productivity among farmers in sub-Saharan Africa. The emergence of new communication channels such as ICTs offer some prospects to boost agricultural extension...

Part I How can we know who is happy? Conceptual and methodological issues -- Objective happiness / Daniel Kahneman -- Ecological momentary assessment / Arthur A. Stone, Sual S. Shiffman, Marten W. DeVries -- Measurement issues in emotion research / Randy J. Larsen and Barbara L. Fredrickson --...