Ζώντας καθημερινά την τουριστική εξέλιξη της χώρας μας και παρατηρώντας συνάμα τις διάφορες αλλαγές, που συντελέστηκαν στο φυσικό περιβάλλον κατά την τελευταία εικοσαετία, δεν μπορεί κανείς παρά να προβληματιστεί και στη ...

Τα τελευταία χρόνια η σχέση της οικονομίας με το περιβάλλον γίνεται όλο και πιο προφανής τόσο στο επίπεδο της επιστημονικής έρευνας όσο και στο επίπεδο της εφαρμογής συγκεκριμένων μέτρων πολιτικής. Η επίδραση της παραγωγής ...

The Notes section of the international Journal of Forecasting contains commentary on the theory and practice of forecasting in the form of communications to the journal such as research notes, teaching tips, practitioners’ ...

Value at Risk (VaR) is increasingly popular as a management and regulatory tool. To further its acceptance it is necessary to assess its reliability under conditions likely to be encountered in financial markets. A logical ...

Chess is an intellectually demanding game played by millions of people around the world. Yet unlike tennis or other competitive sports there are few changes in the rankings of chess players. There have only been twelve ...

Long-term predictions are indispensable for planning and strategy. Yet little is known about their value, their limitations or the most appropriate way of making and using them. This paper examines these issues and proposes ...

Emerging risk-management techniques use Value at Risk (VAR) to assess the market risk of a portfolio. We propose a relative simple method to estimate VAR conditionally to reflect new information about the volatility of ...

Emerging risk-management techniques use Value at Risk (VAR) to assess the market risk of a portfolio. We propose a relative simple method to estimate VAR conditionallyto reflect new information about the volatility of ...

In this study an alternative approach for assessing securities' risk is applied. Various authors have argued that security returns are not homoskedastic but exhibit variation over time. They have observed that large changes ...

Value at risk is becoming increasingly popular as a management and regulatory tool. But before this acceptance goes much further, we need to assess its reliability under financial market conditions. Most VAR models deal ...