Reforms to make it easier to register a business are the most common type of reform tracked by Doing Business, with over 75 percent of countries adopting at least one reform in this area over the past decade. One of the most popular types of reforms is to set up "one-stop shop" service points by integrating different registration steps with different levels of government into a single streamlined process, lowering the time and/or cost needed to register a business.
A number of studies, all from Latin America, have examined the impact of one-stop shops on firm registration, exploiting cross-time and cross-municipality variation in the implementation of these reforms to conduct difference-in-difference analysis. Bruhn (2011) uses labor market survey data to show that a reform in Mexico, which was implemented in some of the most populous and economically developed municipalities, increased the number of registered businesses by about 5 percent. Kaplan, Piedra, and Seira (2011) find that the same reform increased the number of new firm registrations with the Mexican Social Security Institute (IMSS) by 5 percent, using administrative data. For Columbia, Cárdenas and Rozo (2009) use administrative data from Chambers from Commerce in six major cities to show that a one-stop shop also led to a 5 percent increase in businesses registrations.