Nota di Lavoro, Fondazione Eni Enrico Mattei 59.2005
We formulate two kinds of sustainability criteria by using feedback and arbitrary rules for selecting policy variables in non optimizing economies. We show that when policy variables are selected arbitrarily their accounting prices could determine sustainability in addition to the accounting prices of the economys assets. We use our theoretical framework to obtain estimates of sustainability conditions in real economies. Thus, the papers contribution consists in developing a systematic theoretical framework for determining value functions, accounting prices and sustainability criteria, under fairly general non-optimizing behavioral rules, and then showing that this framework can be used in applied work to estimate sustainability conditions. Based on our theoretical model, we examined the case of the Greek economy. When there is no binding environmental policy then migration rate, growth of capital per worker and exogenous technical change are strong positive factors for sustainability. When we introduce potential environmental damages due to sulphur dioxide (SO2) emissions, our findings indicate that these damages affect negatively the sustainability criterion.
Sustainability criteria Non-declining social welfare Accounting prices Non optimizing economy Feedback rule Arbitrary rule