This paper evaluates causal impacts of a large-scale agricultural
extension program for smallholder women farmers on food security
in Uganda through a regression discontinuity design that exploits
an arbitrary distance-to-branch threshold for village program eligibility.
We find eligible farmers experienced significant increases in agricultural
production, savings and wage income, which lead to improved food security.
Given minimal changes in adoption of relatively expensive inputs
including HYV seeds, these gains are mainly attributed to increased usage
of improved cultivation methods that are relatively costless. These
results highlight the role of improved basic methods in boosting agricultural
productivity among poor farmers.