Fajnzylber, P., Maloney, W.F., & Montes Rojas, G.V. (2006). Releasing Constraints to Growth or Pushing on a String? The Impact of Credit, Training, Business Associations and Taxes on the Performance of Mexican Micro-Firms (World Bank Policy Research Working Paper No. 3807). Recuperado de https://openknowledge.worldbank.com/bitstream/handle/10986/8835/wps3807.pdf?sequence=1