Martins, Rita; Fortunato, Adelino - Grupo de Estudos Monetários e Financeiros (GEMF), … - 2005
A residential water demand equation is estimated using a panel data sample of 5 Portuguese local communities and 72 months, corresponding to a total number of 360 observations. Because of the presence of multi-part tariffs, we use as explanatory variables the two common price-related variables:...