Use the following general linear supply function to answer the question:
Qs = 40 + 6P - 8PI + 10F
Where Qs is the quantity supplied of the good, P is the value of good, PI is the value of an input, and F is the number of companies manufacturing the good.
If PI = $20 and F = 60 what is the equation of the supply function?

Qs = 400 + 6P
Qs = 40 + 8P
P = 480 + 6Qs
Qs = 480 + 6P
None of the above.

Use the following general linear supply function to answer this question:
Qs = 40 + 6P - 8PI + 10F
If PI = $20, F = 60, and the demand function is Qd = 600 - 6P the equilibrium price and quantity are, respectively,
P = $10 and Q = 640
P = $8 and Q = 326
P = $10 and Q = 540
P = $8 and Q = 640
None of the above

If the current price of a good is $10, market demand is Qd = 400 - 20P, and market supply is Qs = -50 + 10P, then
More of the good is being produced than people want to buy.
A lower price will increase the shortage.
At the current price there is excess demand, or a shortage, of 150 units.
Both b and c.
All of the above.

Yesterday's newspaper reported the results of a study indicating that people who eat more bananas are more attractive to the opposite sex. What do you expect to happen to the market price and quantity of bananas?
Price will decrease, quantity will decrease.
Price will decrease, quantity will increase.
Price will increase, quantity will decrease.
Price will increase, quantity will increase.

In which of the following cases must price always fall?
Demand increases and supply increases.
Demand decreases and supply decreases.
Supply increases and demand remains constant.
Demand decreases and supply increases.
Both c and d.

Consumer surplus
Is positive for all but the last unit purchased.
For a particular unit of consumption is computed by taking the difference between demand price and market price.
For all units consumed is the area below demand and above market price over all the units consumed.
Added to producer surplus provides a measure of the net gain to society from the production and consumption of the good.
All of the above.

The function a decision maker seeks to maximize or minimize is the ________ function.
Optimal
Decision-making
Objective
Marginal
None of the above