ABC of Switzerland is revisiting its cost of equity analysis in 2020. As a result of extraordinary actions by the Swiss Central Bank, the Swiss bond index yield (10-year maturity) has dropped to a record low of 0.450%. The Swiss equity markets have been averaging 7.500% returns, while the Financial Times global equity market returns, indexed back to Swiss francs, is at 7.720%. ABC's corporate treasury staff has estimated the company's domestic beta at 0.755, but its global beta (against the larger global equity market portfolio) at 0.475.

a) What is ABC's cost of equity based on the domestic portfolio of a Swiss investor?

b) What is ABCs cost of equity based on a global portfolio for a Swiss investor?