Answer:
increased
Explanation:
Data provided in the question:
Price of a gallon of gasoline in 1972 = $0.35
CPI in 1972 = 0.418
Price of a gallon of gasoline in 2005 = $2.25
CPI in 2005 = 1.68
Now,
Real cost in 1972 = [ Nominal cost in 1972 ] ÷ [ CPI in 1972 ]
= $0.35 ÷ 0.418
= $0.837
Real cost in 2005 = [ Nominal cost in 2005 ] ÷ [ CPI in 2005 ]
= $2.25 ÷ 1.68
= $1.34
Hence,
The price of gallon of gasoline increased between 1972 and 2005
Answer:
cause no changes in the demand and supply curves of oil in the current year.
Explanation:
Changes in price don't generate shifts in the supply and demand curves in the short term. It generates a movement along the curves as non price changes are the ones that generate a shift in these curves. If the price of the oil increases, the demand quantity falls which will cause a movement along the demand curve. Also, this situation will increase the supply quantity which also generates a movement along the supply curve.
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Answer:
B. changes production levels to meet the demand.
Explanation:
The Keynesian model is usually used as a theoretical approach to understand economics in the short run. For Keynes, in the short term, firms can not change their prices immediately because exist a menu cost: the cost of changing prices. Instead, firms change the unique variable that they can control: quantities.
In such way can meet the demand in the short run.
