The present paper provides conditions for the consistency among different orderings which may be defined on sets of financial portfolios; in particular, a different reading key for some classical results is proposed. Besides arbitrage (whose impossibility is necessary and sufficient for...

The possibility to interpret expected and nonexpected utility theories in purely probabilistic terms has been recently investigated. Such interpretation proposes as guideline for the Decision Maker the comparison of random variables through their probability to outperform a stochastic benchmark....

There is a wide literature about the behaviour of agents in a stock-market in the presence of imitation phenomena. Some issues may be treated in a game-theory context. In particular, we consider a micro-model of stock-market speculator and formalise it in a Stackelberg game. The problem consists...

In the last few decades, large retailers have become increasingly important and have radically altered the way value is created along the supply chain. Large retailers now control several phases of the production chain, through, among others, private labels and certification standards. The aim...

Purpose - Recently numerous mergers have been realized. The paper aims to discuss famous static models about the exchange ratio. The paper then seeks to propose a simple dynamical model to valuate both the immediate merger's effects and the delayed ones. Design/methodology/approach - The paper...