Starting from a long run steady state equilibrium, a variety of expansionary fiscal and monetary policies were undertaken. The production exceeds potential GDP in short run. The resulting: A. hyper-intense production will be unsustainable in the long run.
B. higher wages will encourage workers to produce more at high prices.
C. lower prices will lead to a lower quantity of demand.
D. downward slope in aggregate supply curve will be short run.

Anew 2-lane road is needed in a part of town that is growing. at some point the road will need 4 lanes to handle the anticipated traffic. if the city's optimistic estimate of growth is used, the expansion will be needed in 4 years and has a probability of happening of 40%. for the most likely and pessimistic estimates, the expansion will be needed in 8 and 15 years respectively. the probability of the pessimistic estimate happening is 20%. the expansion will cost $ 4.2 million and the interest rate is 8%. what is the expected pw the expansion will cost?