In view of the progressive development of the ESG concept, this paper measures the sovereign ESG index of 171 countries worldwide over the period 1990-2020 by employing the entropy weight method based on relevant indicators from the World Bank's Sovereign ESG Database. The graphical analysis of...

This paper develops a dynamic portfolio selection model incorporating economic uncertainty for business cycles. It is assumed that the financial market at each point in time is defined by a hidden Markov model, which is characterized by the overall equity market returns and volatility. The risk...

Composite spatial data on administrative area level are often presented by maps. The aim is to detect regional differences in the concentration of subpopulations, like elderly persons, ethnic minorities, low-educated persons, voters of a political party or persons with a certain disease....