i)Systematic Risk is the risk which affects the entire economy
and all industries and such risk cannot be diversifies. Beta of
firm is representation of the systematic risk of firm. Example of
Systematc risks are Interest rate, inflation,etc
Unsystematic risk is the risk which is specific to a particular
company or industry. This risk can be minimised through
diversification. CAPM method doesnot provide return for
unsystematic risk. Examples of unystematic risks are
Strikes in a particular company, machine failure in a factory,
accident in a factory etc,
ii) Diversification means adding securities with lower correlation
or increasing number of securities .This reduces the unsystematic
risk of the investment.
Value of diversification of stocks means reduction in the standard
deviation of overall stock without affecting average returns. This
means there is reduction of risk.Lower the standard deviation,
lower is the risk.
iii) Probability of recession =100%-45%-20% =35%
Expected Return of BRA=45%*15%+20%*10%+35%*2% =9.45%
Standard Deviation of
BRA=(45%*(15%-9.45%)^2+20%*(10%-9.45%)+35%*(2%-9.45%)^2)^0.5
=6.65%
Expected Return of DGS=45%*25%+20%*20%+35%*1% =15.60%
Standard Deviation of
DGS=(45%*(25%-15.60%)^2+20%*(20%-15.60%)+35%*(1%-15.60%)^2)^0.5
=14.23%
iv) Weight of investment by Brandon in BRA
=2500000/4000000=62.5%
Weight of investment by Brandon in DGS =1500000/4000000=37.5%
Expected Return in case of Expansion =62.5%*15%+37.5%*25%
=18.75%
Expected Return in case of Normal =62.5%*10%+37.5%*20%
=13.75%
Expected Return in case of Recession =62.5%*2%+37.5%*1%
=1.625%
Expected Return of Portfolio =Probability of Expansion*Expected
Return in case of Expansion +Probability of Normal*Expected Return
in case of Normal+Probability of Recession*Expected Return in case
of Recession
=45%*18.75%+20%*13.75%+35%*1.625% =11.76%
Standard Deviation
=(45%*(18.75%-11.76%)^2+20%*(13.75%-11.76%)^2+35%*(1.625%-11.76%)^2)^0.5
=7.66%
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