Afarmer is deciding whether or not to add fertilizer to his or her crops. if the farmer adds l pound of fertilizer per acre, the value of the resulting crops rises from $80 to $100 per acre. according to marginal analysis, the farmer should add fertilizer if it costs less than:

a. $12.50 per pound
b. $20 per pound.
c. $80 per pound.
d. $100 per pound.

Suppose that two firms produce differentiated products and compete in prices. as in class, the two firms are located at two ends of a line one mile apart. consumers are evenly distributed along the line. the firms have identical marginal cost, $60. firm b produces a product with value $110 to consumers.firm a (located at 0 on the unit line) produces a higher quality product with value $120 to consumers. the cost of travel are directly related to the distance a consumer travels to purchase a good. if a consumerhas to travel a mile to purchase a good, the incur a cost of $20. if they have to travel x fraction of a mile, they incur a cost of $20x. (a) write down the expressions for how much a consumer at location d would value the products sold by firms a and b, if they set prices p_{a} and p_{b} ? (b) based on your expressions in (a), how much will be demanded from each firm if prices p_{a} and p_{b} are set? (c) what are the nash equilibrium prices?

You are purchasing a bond that currently sold for $985.63. it has the time-to-maturity of 10 years and a coupon rate of 6%, paid semi-annually. the bond can be called for $1,020 in 3 years. what is the yield to maturity of this bond?

Suppose a starbucks tall latte cost $4.00 in the united states, 5.00 euros in the euro area and $2.50 australian dollars in australia. nominal exchange rates are .80 euros per dollar and 1.4 australian dollars per u.s. dollar. where does purchasing power parity hold? a. both the euro area and australia. b. neither the euro area or australia. c. the euro area but not australia. d. australia but not the euro area.