An Empirical Analysis of State and Private-Sector Provision of Water Services in Africa
利用非洲数据，通过数据包络分析和随机成本前沿方法，比较私营与国有供水企业的绩效，发现私营企业并未表现更优，并分析了水私有化在低收入经济体可能失败的原因。
Under pressure from donor agencies and international financial institutions such as the World Bank, some developing countries have experimented with the privatization of water services. This article reviews the econometric evidence on the effects of water privatization in developing economies and presents new results using statistical data envelopment analysis and stochastic cost frontier techniques and data from Africa. The analysis fails to show evidence of better performance by private utilities than by state-owned utilities. Among the reasons why water privatization could prove problematic in lower-income economies are the technology of water provision and the nature of the product, transaction costs, and regulatory weaknesses.