We extend Bergstrom and Cornes (1983) to show that for strong independence of efficient allocations from distribution in a public goods economy, the utility functions of all consumers must identically be of the form: A(Y)Xi, where Y and Xi are respectively the quantities of public good and...

We establish that a novel notion of similarity with endowments by Shitovitz and Spiegel (1998) amounts to severe functional form restrictions, and these restrictions on utility functions can be determined by functional equation methods. The resulting functional forms are related to the familiar...