This paper studies precautionary saving when many small risks are considered. We first introduce two simultaneous risks: labor income and interest rate risks. We show that, in this context, sufficient conditions for precautionary saving are weaker than in similar models. Moreover, we find that,...

This paper identifies a new sufficient condition for a prudent agent to have positive precautionary saving in the presence of labor income and interest rate risks of any size. We also provide three economic interpretations for this condition focusing respectively on the marginal effect of saving...

This note extends the results on the first four derivatives of the utility function by Menegatti (Eur. J. Oper. Res. 232 (2014) 613–617) to the case of high-order derivatives. We show that, under usual assumptions, if the generic derivative of the utility function of order n is sign invariant...

This note studies the relationships between different aspects of agent’s preferences toward risk. We show that, under the assumptions of non-satiation and bounded marginal utility, prudence implies risk aversion (imprudence implies risk loving) and that temperance implies prudence...

This paper studies choices on prevention and cure in a context where an agent bears a health risk. In this framework we first analyze interdependence between the optimal levels of prevention and cure. Second, we study the effects on optimal choices of a change in the cost of one of the two...

This paper examines the relationship between inequality and growth in the Italian regions in the period 1990-2004. Our results support the conjecture, formulated by the most recent economic theory, that greater inequality in the distribution of personal incomes reduces real growth. Furthermore,...