This paper studies the possibility of secure implementation (Saijo, T., T. Sjostrom, and T. Yamato (2007) "Secure implementation," Theoretical Economics 2, pp.203-229) in discrete public good economies with quasi-linear preferences. We find that only constant social choice functions are securely...

This paper studies the relationship between no-envy (Foley, D. (1967) "Resource allocation and the public sector," Yale Economics Essays 7, pp.45-98) and dominant strategy implementability in non-excludable public good economies with quasi-linear preferences. The main result shows that the...

This paper revisits the fair and optimal allocation mechanism (Sun and Yang, Economics Letters 81:73-79, 2003) and demonstrates that it is coalitionally strategy-proof. The proof is valid for general preferences, it is simple and it is short.