Examining the Differences in Self- and Publicly Supplied Firms' Water Demands
研究了制造业企业选择自供水或公共供水的影响因素，并比较了两类企业的用水需求差异，发现年连接费等经济因素影响供水来源选择。
This research examines the factors influencing the decision made by manufacturing firms regarding their source of water supply and tests whether self-supplied firms exhibit demands for intake water different from firms supplied by a public utility. The first stage of the estimation model involves a Probit analysis of the supply-source choice and the second stage employs a regression model with endogenous switching to estimate the demand equations for the two types of firms. Results indicate that economic factors such as annual connection fees influence the supply-source decision.