page 39 chapter three patterns and trends in diversification analysis of national household surveys 3 1 introduction between 1993 1998 rural poverty fell from 66 percent to 45 joint government world bank ngo working group 2000 part the reduction is due higher yields rice other crops which have allowed vietnam become second largest exporter with no expansion area domestic consumption minot goletti addition vietnamese farmers diversified into value has coffee producer production export fruits vegetables risen dramatically over this period income growth undoubtedly non crop activities such as aquaculture livestock raising farm importance each these factors implications for policy public investment if most comes technological change increases then investments agricultural research deserve priority derives largely constraint that prevent some
