We examine how liquidity and asset prices are affected by the following market imperfections: asymmetric information, participation costs, transaction costs, leverage constraints, non-competitive behavior and search. Our model has three periods: agents are identical in the first, become...

We propose a model of organizational decision making, in which information processing is decentralized. Our model incorporates two features of many actual organizations: aggregation entails a loss of useful information, and the decision problems of different agents interact. We assume that an...

The demographic database of Istat (www.istat.it)is explored and the main facts are extracted and described, both at the aggregate national level as well as at the regional one. This paper is completely self-standing but, at the same time, poses the basis for a more general analysis that will be...

We develop a model of the gambler's fallacy (the mistaken belief that random sequences should exhibit systematic reversals). We show that an individual who holds this belief and observes a sequence of signals can exaggerate the magnitude of changes in an underlying state but underestimate their...

In this paper we study the effects of transaction costs on asset prices. We assume an overlapping generations economy with two riskless assets. The first asset is liquid while the second asset carries proportional transaction costs. We show that agents buy the liquid asset for short-term...

We propose a model in which assets with identical cash flows can trade at different prices. Infinitely-lived agents can establish long positions in a search spot market, or short positions by first borrowing an asset in a search repo market. We show that short-sellers can endogenously...

We propose a boundedly rational model of opinion formation in which individuals are subject to persuasion bias; that is, they fail to account for possible repetition in the information they receive. We show that persuasion bias implies the phenomenon of social influence, whereby one’s...

We examine empirically how the maturity structure of government debt affects bond yields and excess returns. Our analysis is based on a theoretical model of preferred habitat in which clienteles with strong preferences for specific maturities trade with arbitrageurs. Consistent with the model,...

We model the term structure of interest rates as resulting from the interaction between investor clienteles with preferences for specific maturities and risk-averse arbitrageurs. Because arbitrageurs are risk averse, shocks to clienteles’ demand for bonds affect the term structure— and...

The Ecofin-Oecd methodology is applied to reconstruct the health care expenditure evolution in Italy and in the Region Emilia Romagna. The reconstructed series can be compared to the historical series, highlighting the different capabilities of the Italian average and of the Region Emilia...