Many of the agricultural input subsidy programs (ISPs) currently being implemented in Sub-Saharan Africa include among their objectives raising farm incomes and reducing rural poverty. However, there is a dearth of empirical evidence on the extent to which ISPs are achieving these objectives. Moreover, results from previous studies on ISPs in Zambia and Malawi, and stubbornly high rural poverty rates in both countries despite many years of large-scale ISPs, have raised doubts that ISPs are effectively reducing poverty.