We present a class of social evaluation functions and inequality indices that obey standard axioms of welfare economics and that can be intuitively linked to measures of relative deprivation and economic isolation. From this, associated classes of indices of tax departure from proportionality...

This paper examines a model of optimal growth where the agregation of two separate well behaved and concave production technologies exhibits a basic non-convexity. Multiple equilibria prevail in an intermediate range of interest rate. However, we show that the optimal paths monotonically...

This paper investigates the effect of working in the underground sector on the level of individual underground expenditures. We show that it can be decomposed into a network effect, a non-separability effect and an income effect. Our empirical analysis uses micro data from a randomized survey...

We compare the economic efficiency of a publicly-owned utility directly controlled by the government with a publicly-owned utility regulated by a public utility commission (PUC). Regulation by a PUC is modelled as a Nash equilibrium of a game between two principals, the government and the PUC,...

The question addressed in this paper is the order of magnitude of the difference between the Borda rule and any given social choice function. A social choice function is a mapping that associates a subset of alternatives to any profile of individual preferences. The Borda rule consists in asking...