Theory of tax evasion is reviewed. The Marrelli approach is studied in a more general environment. Indirect tax evasion by firms is extended to the general case of oligopolic markets with a conjectural variations model and either a price discrimination model, considering both ad valorem and...

I study Public-Private Partnerships (PPP) as investments in public infrastructures that are alternative compared to direct public investments. I consider different forms of PPP, discussing their relative advantages from the point of view of incomplete contract theory and principal-agent...

I provide theory and evidence on the relation between public infrastructures and growth. I develop an OLG model of endogenous growth with a production function including both private and public capital, where the latter is the result of investments in infrastructures. With high substitutability...