In: Finance
Suppose the expected shortfalls calculated for two
segments of a business are $55 million and $110 million. The
correlation between the losses is estimated as 0.5.
a) Expected Shortfall is __________ million.
Answer
As the name denotes Correlation means relationship between two variable (data). It defines the relationship value in numeric terms. The value of correlation lays between -1 to 1.
-1 denotes that the variables have perfect negative relation i.e. if one increases then second goes down or vice-versa.
+1 or positive 1 denotes that variables have perfect positive correlation means one increases than the second also increases
And
0 denotes that there is no correlation exists between them
In the given case
The correlation between the losses of two segments is 0.5
It denotes if one segment’s losses rises then the second’s losses also increases by 0.5 or vice versa
Here we have expected loss of $one segment is $55 million
Than the loss of second segment also increases by 0.5
= $55 x .05 = $ 27.5 million
Then the total loss is = $55 million + $27.5 million = $ 82.5 million