This paper estimates residential water demand functions taking into account the block rate pricing schedule usually set by water utilities. The progressive pricing, although preserves the convexity property on the budget set, induces the consumer budget constraints be non-linear, what violates...

This analysis the relationship between market structure and competitiveness in the Brazilian bank industry. First, it quantifies competitiveness by using the statistic-H proposed by Panzar & Rosse and evaluates its relationship with several concentration statistics: Herfindahl-Hirschman,...