The impact of consulting services on small and medium enterprises: evidence from a randomized trial in Mexico

Using a randomized evaluation with 432 Mexican small and medium enterprises, this paper shows that access to management consulting led to better firm performance: one-year results show positive effects on return-on-assets and total factor productivity. Owners also had large increases in"entrepreneurial spirit"(an entrepreneurs'managerial confidence index). Using Mexican social security data, the analysis finds a large increase in the number of employees and total wage bill several years after the program. The paper documents large heterogeneity in the specific managerial practices that improved as a result of the consulting, but there is no singular mechanism as a panacea for all firms.