*5.1. The Financial Economic Plan Structure*

A fundamental tool to express a judgment of convenience regarding the feasibility/economic sustainability of a project to be carried out in public-private partnership is the economic financial plan (PEF), which includes the estimate of revenues, investments and management costs assumed by the private subject involved [32].

The PEF can be divided into 4 phases:


The last phase of the PEF, therefore, is the validation of the project feasibility and/or economic sustainability: This can be done by using one of the two kinds of the Cash Flow Analysis, for the full year if we refer to sustainability, or referring to the life cycle of the project to assess the economic feasibility.
