In this paper we estimate the willingness to pay for mix of renewable sources of electric power by means of a discrete choice experiment survey conducted in Spain in 2010. Two main categories of power supply attributes are explored: source of renewable power (wind, solar and biomass) and the...

The aim of this paper is to study the evolution of gross agricultural product and that of gross agricultural product per inhabitant, in order to specify the economic progress in the region throughout the 18th century. The total tithe of a large number of villages is used as source material, and...