“…Moreover, given that they do not pay the full cost connected with the environmental damage they are not stimulated to the adoption of the efficient level of preventive measure (Shavell, 1986;Summer, 1983). This problem emerged dramatically in US in cases of reduced size firm operating in risky production activities (Ringleb, Wiggins, 1990). On a economic point of view, this is a problem of internalization in the sense that it causes the fact that some of the losses of the victims may go unclaimed under conventional strict liability; moreover in some cases firms facing considerable liability risks may reduce their capital using "judgment proofness" as an evasion strategy (Van't Veld, Rausser, Simon, 1997).…”