Exam 2: Market Forces: Demand and Supply

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When Iraq invaded Kuwait,the market price of crude petroleum jumped from $21.54 per barrel to $30.50 per barrel-an increase of almost 42 percent.Your boss is puzzled,because the price increase actually occurred before there was a physical reduction in the current amount of oil available for sale. a.Explain why the price of oil increased so rapidly. b.One year after the invasion,the price of oil fell to $21.32 per barrel,its prewar level.Explain why.

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Consider a market characterized by the following demand and supply conditions: PX = 15 − 2QX and PX = 3 + 2QX.The equilibrium price and quantity are,respectively:

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Given a linear demand function of the form QXd = 500 − 2PX − 3PY + 0.01M,find the inverse linear demand function assuming M = 20,000 and PY = 10.

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In a competitive market,the market demand is Qd = 400 − 5P and the market supply is Qs = 10P - 80.The full economic price under a price ceiling of $25 is:

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Changes in the price of a good lead to:

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The law of demand states that if the price of a good falls and all other things remain the same,the:

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Suppose the market demand for good X is given by QXd = 20 − 2PX.If the equilibrium price of X is $5 per unit,then the total value a consumer receives from consuming the equilibrium quantity is:

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For a wood furniture manufacturer,an increase in the cost of lumber will cause the supply curve to:

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A price ceiling is:

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Advertising provides consumers with information about the underlying existence or quality of a product.These types of advertising messages are called:

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Suppose market demand and supply are given by Qd = 100 − 2P and Qs = 5 + 3P.If a price ceiling of $15 is imposed:

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The supply function for good X is given by Qxs = 1,000 + PX − 5PY − 2PW,where PX is the price of X,PY is the price of good Y,and PW is the price of input W.If the price of input W increases by $10,then the supply of good X:

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Changes in the price of good A lead to a change in:

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Suppose the market demand for good X is given by QXd = 20 − 2PX.If the equilibrium price of X is $5 per unit,then consumers' expenditure on X is:

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An increase in the price of steak will probably lead to:

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In a competitive market,the market demand is Qd = 400 − 5P and the market supply is Qs = 10P - 80.A price ceiling of $32 will result in:

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Which of the following is LEAST likely to be a normal good?

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Consider a market characterized by the following demand and supply conditions: PX = 50 − 5QX and PX = 32 + QX.The equilibrium price and quantity are,respectively:

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Suppose both supply and demand increase.What effect will this have on the equilibrium quantity?

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The demand for good X is given by QX = 4,000 - PX - 2PY + 4PZ + 0.2M,where PY is the price of good Y,PZ is the price of good Z,and M is income.If PY = $800,PZ = $200,and M = $5,000,what is the inverse demand function for good X?

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