Non-Discriminatory,Envy Free Provision of a Collective Good: A Note

In a setting in which the provision of acollective good is at stake the ``principleof generality as equal treatment'' isrelated to the concept of ``envy free nettrades''. This leads to an operationalformulation of the fundamental liberal aimof non-discriminatory politics in terms ofstated preferences or bids. Starting fromsuch bids a simple axiomatic justificationfor ``schematically equal taxes'' (everyonepays the same amount) is given.