Emissions Trading and behaviour of firms: the contribution of the Decision Support System - The problem of the influence exerted on the firms behaviour from the introduction of the mechanisms of regulation of the Emissions Trading (ET) - is the heart of this 185 work. In fact, following the approach of the new-institutionalist school of Powell and Di Maggio, we wanted to test how much the business can be influenced by both the action of public and private institutions and the interaction with the socio-economical environment where it acts. In this context we tried to analyse the consequences induced by the dictates of the Kyoto Protocol on the strategic choices of the companies, with reference, above all, to the tendencies to change and innovation. The hypothesis of search is that mechanisms of regulation of the ET may change the competitive behaviour of the companies, for the advantage to pay the emissions permits rather than innovate the technological processes. To sustain such an hypothesis we developed a Decision Support System able to simulate the businesses behaviour after the share allotment. The work ends with a simulation carried out on the energy manufacturing equipment from which it is possible to make some considerations about the limited effectiveness of the mechanisms of regulation of the ET to stimulate virtuous businesses behaviours oriented to innovation.
Key words: new-institutional theory, emission trading, competitive behaviour.
JEL classifications: M51, L51, C15, Q56