"• The percentage of observations called correctly = (A + D)/(A + B + C + D)";(16)
"• The percentage of pre-crisis periods called correctly = A/(A + C)";(17)
"• The percentage of tranquil periods called correctly = B/(B + D)";(18)
"• The false alarms as a percentage of the total alarms = B/(A + B)";(19)
"• The Quadratic probability score or QPS=1T∑t=1T2Pt-Rt2";(20)
"• The Global score bias or GSB=2P-R2";(21)