Theoretical and Empirical research on the outsourcing of the operation at public sewage treatment plant

近年来，日本许多地方政府将公共污水处理厂的运营外包给私营部门。在这种公私关系下，我们需要考虑委托代理问题和交易成本问题。也就是说，对于主体的控制活动和代理的信号活动，信息技术可以为我们提供帮助。此外，从交易成本的角度出发，指出了设备和软件标准化的必要性。

In recent years, many local governments in Japan have outsourced the operation of public sewage treatment plant to the private sector. Under this public-private relationship, we need to consider the principal-agent problems and transaction costs. That is, for control activities by the principal and signaling activities by the agent, information technology can be useful for us. In addition, from the viewpoint of transaction costs, we have pointed out the need for standardization of equipment and software.