The increasing problems of pollution and traffic congestion require the definition of a model of sustainable mobility -- in particular, in large, urban areas. An indirect control on these negative externalities associated with private transport may be pursued by means of policies aimed at...

Within the recent debate on liberalization of local public services, the paper investigates the cost properties of a sample of Italian public utilities providing in combination gas, water and electricity. The estimates from a Composite Cost Function econometric model (Pulley and Braunstein,...

The empirical literature on the cost structure of the electric utility industry traditionally focused on the measurement of specific technological properties: 1) scale economies in generation or distribution; 2) multi-product (or horizontal) scope economies at one particular stage; 3) multi-stage...

In this paper we analyse the cost structure of a sample of Italian Local Public Transport (LPT) companies operating in large urban centres, so as to extend the evidence of some recent studies focused on small-sized and medium-sized operators. The main focus is to verify the presence and the...

In the last decade, the European Commission promoted a new regulatory framework aiming at a gradual liberalization of the energy markets. The introduction of competition among generators implies the need to separate generation from transmission and distribution activities. However, if savings...

In the paper we study the cost structure of a sample of Italian utility providing in combination gas, water and electricity. The estimates from a Composite cost function model (Pulley e Braunstein, 1992) highlight that costs are lower when multi-utility operate in high-density areas and when...