The present paper aims to introduce the principal definitions and proof of fundamental properties of the so called "Way Below" relation. We introduce an alternative proof, with respect to \cite{Scott}, of the strong interpolation theorem. The strong interpolation theorem is the theoretical...

We present cross and time series analysis of price fluctuations in the U.S. Treasury fixed income market. Bonds have been classified according to a suitable metric based on the correlation among them. The classification shows how the correlation among fixed income securities depends strongly on...

The Italian banking system is characterized by deep efficiency inequality between banks operating in different regions, with northern banks that largely outperform the southern ones. Moreover the ratio of non-performing loans to total loans is significantly higher in the South than elsewhere. In...

The Gini concentration ratio has been extensively used in the study of "inequality" of distributions. According to Chakrabarthy (1982), "the Lorenz curve and the Gini index have remained the most popular and powerful tool in the analyses of size distribution of income". A major statistical...

Several approaches for solving multi-objective optimization problems entail a form of scalarization of the objectives. This paper proposes a study of different dynamic objectives aggregation methods in the context of evolutionary algorithms. These methods are mainly based on both weighted sum...

Foreign direct investment (FDI) from Multinational Enterprises (MNEs) can generate positive externalities to host countries, increasing domestic firms' productivity. Recently, the attention of researchers has moved from the analysis of ''horizontal'' spillovers – i.e. those benefits to local...