The foreign purchases, interest rate, and real-balances effects explain why
a. aggregate demand curve is downward-sloping.
b. aggregate demand curve may shift to the left or right.
c. economy will adjust towards equilibrium.
d. aggregate expenditures schedule may shift up or down

Thomas kratzer is the purchasing manager for the headquarters of a large insurance company chain with a central inventory operation. thomas's fastest-moving inventory item has a demand of 6,000 units per year. the cost of each unit is $100, and the inventory carrying cost is $10 per unit per year. the average ordering cost is $30 per order. it takes about 5 days for an order to arrive, and the demand for 1 week is 120 units. (this is a corporate operation, and the are 250 working days per year.)a) what is the eoq? b) what is the average inventory if the eoq is used? c) what is the optimal number of orders per year? d) what is the optimal number of days in between any two orders? e) what is the annual cost of ordering and holding inventory? f) what is the total annual inventory cost, including cost of the 6,000 units?

Consider the labor market for computer programmers. during the late 1990s, the value of the marginal product of all computer programmers increased dramatically. holding all else equal, what effect did this process have on the labor market for computer programmers? the equilibrium wagea. increased, and the equilibrium quantity of labor decreased. b. decreased, and the equilibrium quantity of labor increased. c. increased, and the equilibrium quantity of labor increased. d. decreased, and the equilibrium quantity of labor decreased.

One of the growers is excited by this advancement because now he can sell more crops, which he believes will increase revenue in this market. as an economics student, you can use elasticities to determine whether this change in price will lead to an increase or decrease in total revenue in this market. using the midpoint method, the price elasticity of demand for soybeans between the prices of $5 and $4 per bushel is , which means demand is between these two points. therefore, you would tell the grower that his claim is because total revenue will as a result of the technological advancement.