An analyst has predicted the following returns for Stock A and Stock B in three
ID: 3439122 • Letter: A
Question
An analyst has predicted the following returns for Stock A and Stock B in three possible states of the economy.
What is the probability of a recession? (Round your answer to 2 decimal places.)
Calculate the expected return of Stocks A and B. (Round your answers to 2 decimal places.)
Calculate the expected return of a portfolio that is invested 58% in A and 42% in B. (Round your answer to 2 decimal places.)
State Probability A B Boom 0.29 0.24 0.23 Normal 0.41 0.20 0.13 Recession ? 0.15 0.07Explanation / Answer
a)
The probabilities of boom, normal, and recession must add up to 1. Thus,
0.29 + 0.41 + P(rec) = 1
0.7 + P(rec) = 1
P(rec) = 0.30 [ANSWER]
************************
b)
As E(x) = Sum [x P(x)]
For stock A,
P(x) x x P(x)
0.29 0.24 0.0696
0.41 0.2 0.082
0.3 0.15 0.045
Hence,
E(xA) = 0.1966 = 19.66% [ANSWER]
For stock B,
P(x) x x P(x)
0.29 0.23 0.0667
0.41 0.13 0.0533
0.3 0.07 0.021
E(xB) = 0.141 = 14.1% [ANSWER]
*****************************
c)
E(xC) = 0.58 E(xA) + 0.42 E(xB) = 0.173248 = 17.3248% [ANSWER]