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不断增长的人口的需要，水一直是需要的。这项研究分析了印度南部农业水资源的数据，该地区近几十年来一直缺水。这项研究是为解决水资源短缺及其对经济和社会发展造成的消极影响而寻找有用的政策影响的努力的一部分。本研究的目的是了解具有不同背景和农业生产水资源禀赋的被调查农场之间生产效率和配置效率差异的原因，并得出印度农村可持续发展的政策含义。以下是本研究到目前为止的成果。根据我们在南印度泰米尔纳德邦的调查，建立了一套对政策分析有用的数据库2。已经开发了一种新的非参数方法来分解效率措施，并将其应用于从现场收集的数据，3。还开发了一种计算投入材料影子价格的新方法，以得出对投入材料补贴政策的政策影响。利用时间序列数据确定了存在的水井灌溉系统的经济价值。该研究成果已于2007年1月在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准备发表。

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.