The IMPact project aimed at creating a common and comprehensive EU Guide to help Member States to improve assessment and monitoring of the macro-economic effects of their PHS supporting measures. As such, the project addressed the following issues on an ex-ante and ex-post basis: job creation, transfer from the shadow economy to the formal economy, net job creation, sustainability/optimal level of public investment and return on investments. The long-term objective of the project is to help public authorities to shape the policies that best fit their needs and objectives.