Suppose that in an​ economy, investment is​ $160 billion, saving is​ $140 billion, government expenditure on goods and services is​ $150 billion, exports are​ $200 billion, and imports are​ $250 billion. What is the amount of tax revenue and the government budget​ balance?

Two assets have the following expected returns and standard deviations when the risk-free rate is 5%: asset a e(ra) = 18.5% σa = 20% asset b e(rb) = 15% σb = 27% an investor with a risk aversion of a = 3 would find that on a risk-return basis. a. only asset a is acceptable b. only asset b is acceptable c. neither asset a nor asset b is acceptable d. both asset a and asset b are acceptable