Old and Scarce Tracts on Money.

on semihypergroups and hypergroups

in this thesis, first the notion of weak mutual associativity (w.m.a.) and the necessary and sufficient condition for a $(l,gamma)$-associated hypersemigroup $(h, ast)$ derived from some family of $lesssim$-preordered semigroups to be a hypergroup, are given. second, by proving the fact that the concrete categories, semihypergroups and hypergroups have not free objects we will introduce t...

On measuring nonlinear risk with scarce observations

We propose a methodology for estimating the risk of portfolios that exhibit nonlinear dependence on the risk driving factors and have scarce observations, which is typical for portfolios of investments in hedge funds. The methodology consists of two steps: first, regressing the portfolio return on nonlinear functions of each single risk driving factor and second, merging together the obtained e...

Reflections on Money and Inflation

On gardens, brackets and money

Understanding the scenarios of the orthodontic community in different countries may favor the political and administrative positioning of institutions involved with Orthodontics as a science. In the movie Being There (1979), Peter Sellers plays the gardener Chance. Living completely secluded in Washington D.C., what Chance knows about the world is what he sees on television. He entered into the...

On Time and Money Donations

This paper investigates the determinants of time and money gifts. We first develop a behavioural model which accounts for both types of donations, as well as for decisions about domestic and market hours of work. We then investigate the issue empirically, using survey data for Italy. Results suggest that, according to the theoretical predictions, proxies for “warm glow”, reputational concerns a...