A portfolio consists of 40 percent of Stock S and 60 percent of Stock T. Stock S will return 13 percent if the economy booms and 8 percent if it is normal. Stock T will return 6 percent in a boom and 10 percent in a normal economy. The probability of a boom is 50 percent. What is the portfolio variance?

The retained earnings account has a credit balance of $24,650 before closing entries are made. if total revenues for the period are $77,700, total expenses are $56,900, and dividends are $13,050, what is the ending balance in the retained earnings account after all closing entries are made?

Suppose that electricity producers create a negative externality equal to $5 per unit. further suppose that the government imposes a $5 per-unit tax on the producers. what is the relationship between the after-tax equilibrium quantity and the socially optimal quantity of electricity to be produced?

Fractional reserve banking which of the following statements about fractional reserve banking are correct? check all that apply. fractional reserve banking allows banks to create money through the lending process. fractional reserve banking does not allow banks to hold excess reserves. fractional reserve banking allows banks to create additional wealth by lending some reserves. fractional reserve banking relies on everyone not withdrawing their money at the same time.