a). risk-free rate = US govt 10-year bond rate of 3%
Beta = 1.10
Equity risk premium (ERP) = US risk premium + additional risk premium for Brazil
Additional risk premium for Brazil = (default spread over US$ bond)*standard deviation in Brazil equity index/standard deviation on 10-year Brazilian govt bond = (5% - 3%)*(28%/20%) = 2.80%
ERP = 5% + 2.80% = 7.80%
US $ cost of equity for Brazilian operations = risk-free rate + beta*ERP = 3% + 1.10*7.80% = 11.58%
b). risk-free rate = 10-ys Chilean bond rate - default spread over US$ bond = 6.25% - (4%-3%) = 5.25%
Beta = 1.10
ERP = US risk premium + additional risk premium for Chile
= 5% + (4%-3%)*(24%/16%) = 6.50%
Chilean peso cost of equity = 5.25% + 1.10*6.50% = 12.40%
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