Carrillo, Paul; Bellettini, Orazio; Coombs, Elizabeth - Inter-American Development Bank - 2007
and Guayaquil- both before and after the privatization of water services in Guayaquil. The type of data sources that are … used make it possible to specifically control for income and, thus, to evaluate changes in water provision, particularly … used to identify the causal effects of the privatization of water provision. In particular, differences in a) before …