g A construction company builds roads with machinery​ (capital, K) and labor​ (L). If we plot the isoquants for the production function so that labor is on the horizontal​ axis, then a point on the isoquant with a small MRTS​ (in absolute​ value) is associated with high​ use and low​ use. A. ​labor; capital B. ​concrete; gravel C. ​capital; labor D. None of the above.

Consider a treasury bill with a rate of return of 5% and the following risky securities: security a: e(r) = .15; variance = .0400 security b: e(r) = .10; variance = .0225 security c: e(r) = .12; variance = .1000 security d: e(r) = .13; variance = .0625 the investor must develop a complete portfolio by combining the risk-free asset with one of the securities mentioned above. the security the investor should choose as part of her complete portfolio to achieve the best cal would be a. security a b. security b c. security c d. security d