Welfare consequences of water supply alternatives in rural Tunisia
研究了突尼斯农村地区公共供水系统和自建供水系统的福利效果，通过计算消费者剩余和生产者剩余，从社会角度比较两种系统的效率，发现两者均因产量低于产能而低效。
Many economic studies have addressed the issue of inefficiency of public water supply in rural areas and the potential for improved service by private companies. Many of these analyses focused on identifying either willingness to pay or comparing average service costs and prices paid by customers. This paper performs a welfare analysis of two water supply systemspublic and self owned-in rural Tunisia. The paper calculates consumer and producer surplus and compares the performance of the two systems from a social point of view. Results suggest that both systems are inefficient, mainly because of a production level that is low compared with production capacity. © 2002 Elsevier Science B. V. All rights reserved.