In the last years the interest in the Value at Risk (VaR) estimation has significantly growth due to international financial instability. We modelled the daily VaR estimation trough different static and non-static variance techniques in order to evaluate the changes produced in financial risk...

Chemical and physical-chemical parameters define water quality and are involved in water body type and habitat determination. They support a biological community of a certain ecological status. Water quality controls involve a large number of measurements of variables and observations according...