Dethier, Jean-Jacques, Hirn, Maximilian and Straub, Stéphane (2011) Explaining Enterprise Performance in Developing Countries with Survey Data. World Bank Research Observer, 26 (2). pp. 258-309.

Nauges, Céline and Whittington, Dale (2010) Estimation of Water Demand in Developing Countries: An Overview. World Bank Research Observer, 25 (2). pp. 263-294.