Economic Analysis of Institutions and Policies on Water Resources: Case of South India

为了实现经济发展和满足发展中国家日益增长的人口的需要，一直需要水。这项研究分析了近几十年来水资源稀缺的印度南部农业水资源的数据。这项研究旨在为解决水资源短缺及其对经济和社会发展造成的负面影响寻找有益的政策含义。本研究的目的是了解不同背景和天赋的受访农场在农业生产水资源方面存在生产效率和配置效率差异的原因，并得出对印度农村可持续发展的政策影响。1.基于我们在印度南部泰米尔纳德邦的调查，建立了一套可用于政策分析的数据库；2.开发了一种新的非参数方法来分解效率措施，并将其应用于从田间收集的数据；3.还开发了一种新的方法来计算投入材料的影子价格，以得出对投入材料补贴政策的政策含义；4.利用时间序列数据确定了井灌系统存在的经济价值。这项研究成果已在2007年1月的美国农业经济协会冬季会议上发表。与2和3有关的另外两篇论文正在筹备出版中。

Water has been always in demand for the purposes of achieving economic development and meeting the needs of growing population in developing countries. This study analyzed the data on water resources in agriculture in South India, where water has been scarce in the recent decades. This study is part of efforts to find useful policy implications for dealing with the shortage of water resources and the resulted negative consequences on economic and social development.The objectives of this study are to understand reasons for the difference in production efficiency and allocative efficiency among surveyed farms with different backgrounds and endowments on water resources for agricultural production and to derive policy implications for sustainable development in rural India. The followings are the outputs of this study so far.1.A set of database, which is useful for policy analyses, has been created based on our own survey in Tamilnadu in South India,2.A new non-parametric approach to decompose the efficiency measures has been developed and applied to the data which have been collected from the field,3.A new approach to calculate shadow prices of input materials has been also developed to derive policy implications on subsidy policies of input materials, and4.The economic values of the existence of well irrigation systems have been identified using time-series data. This research output has been presented at the Winter meetings of the American Agricultural Economic Association in January 2007. Two other papers related with 2 and 3 are in the process of the preparation for publication.