"This study evaluates the impact of business-development-support programs (credit, training, and a combination of both) on the performance of micro- and small enterprises (MSEs) in Ethiopia. Using 2015 Ethiopian urban survey data and employing endogenous-switching regressions for multiple treatments, we document a positive and significant effect of credit, training, and a combination of training and credit on MSEs. Our results highlight the heterogeneity in treatment effects between women- and men-owned MSEs: women-owned businesses do not benefit from access to treatments. Our results suggest that improving the performance of MSEs requires fine-tuned interventions that meet the specific needs of men and women who own small businesses rather than one-size-fits-all programs."