In the literature of risk analysis different synthetic indices are built on the bases of some indicators and in this work we propose to use, alternatively to PCA, a combination statistical procedure. The univariate indices that we use are those proposed by _V-lab_ using a nonparametric...

The paper discusses the impact of the use of Facebook as a supporting learning platform for a course in Mathematics at the undergraduate level. After the examination of some critical issues of Facebook in a learning framework, we analyze data on the usage the page (total reach and number of...

This paper investigates what motivates intergenerational time and money transfers. We consider a model in which transfers may be driven not only by altruism, but also by exchange considerations. We use data from the Survey of Health, Ageing and Retirement in Europe (SHARE) to discriminate...

In this paper we review the main theories of household and marriage systems, highlighting their inability to account for the astonishing variety of family and marriage patterns that characterized modern Italy. We propose a new interpretative framework, where social reproduction is given pride of...

The well-known SETAR model introduced by Tong belongs to the wide class of TAR models that may be specified in several different ways. Here we propose to consider the delay parameter as endogenous, that is we make it to depend on both the past value and the specific past regime of the series. In...

This paper studies excess of loss reinsurance with reinstatements in the case in which the aggregate claims are generated by a discrete distribution, in the framework of risk adjusted premium principle. By regarding to comonotonic exchangeability, a generalized definition of initial premium is...

We develop a model where heterogeneous agents maximize their individual utility based on (after tax) income and on the level of public expenditure (as in Cowell, Gordon, 1988). Agents are different in risk aversion and in the relative preference for public expenditure with respect to personal...

This essay investigates the network structure of inter-firm worker mobility in Veneto, an industrial region of Northern Italy, using comprehensive employer-employee matched data. The empirical network reveals a small world pattern that hinges critically upon a few hub firms. Main hubs are found...

Representing ambiguity in the laboratory using a Bingo Blower (which is transparent and not manipulable) and asking the subjects a series of allocation questions (which are more efficient than pairwise choice questions), we obtain data from which we can estimate by maximum likelihood methods...

The measurement of the quality of research has reached nowadays an increasing interest not only for scientific reasons but also for the critical problem of researchers' ranking, due to the lack of grant assignments. The most commonly used approach is based on the so-called $h$-index, even if the...