Have you ever read this article?

Muñoz, Lucio, 2011.  Pointing Out the Expected Price and Cost Impacts on Consumers and Producers from Implementing Water Privatization Under Conditions of Income Insecurity and Scarcity, En: Gestión Integral del Agua, REDESMA, Vol.5(1), March, La Paz, Bolivia.

https://www.researchgate.net/publication/281276543_Pointing_out_the_expected_price_and_cost_impacts_on_consumers_and_producers_from_implementing_water_privatization_under_conditions_of_income_insecurity_and_scarcity