学ECON的,帮我看到题
- 主题发起人 darkforce
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pork,chicken,and beef are substitute goods..if prices of chicken and beef decreased, demand of them would increase...then demand of pork would decrease...so..if government doesn't regulate the price of pork, in long-term,price of pork will decrease as well to stay competitive....
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OK,谢谢哦`
Question 3
The rent control agency of New York City has found that aggregate demand is
QD = 160 - 8P. Quantity is measured in tens of thousands of apartments. Price, the average monthly rental rate, is measured in hundreds of dollars. The agency also noted that the increase in Q at lower P results from more three-person families coming into the city from Long Island and demanding apartments. The city’s board of realtors acknowledges that this is a good demand estimate and has shown that supply is QS = 70 + 7P.
(b) (2 marks)
Suppose the agency bows to the wishes of the board and sets a rental of $900 per month on all apartments to allow landlords a “fair” rate of return. If 50 percent of any long-run increases in apartment offerings come from new construction, how many apartments are constructed?
QS = 70 + 7*9 （new price）
= 133
QS = 70 + 7*6 (market-clearing price)
= 112
New construction = (133 ? 112)*0.5
= 10.5 tens of thousands of apartment
Therefore 10.5 tens of thousands of apartments are constructed.
是不是这样啊???
Question 3
The rent control agency of New York City has found that aggregate demand is
QD = 160 - 8P. Quantity is measured in tens of thousands of apartments. Price, the average monthly rental rate, is measured in hundreds of dollars. The agency also noted that the increase in Q at lower P results from more three-person families coming into the city from Long Island and demanding apartments. The city’s board of realtors acknowledges that this is a good demand estimate and has shown that supply is QS = 70 + 7P.
(b) (2 marks)
Suppose the agency bows to the wishes of the board and sets a rental of $900 per month on all apartments to allow landlords a “fair” rate of return. If 50 percent of any long-run increases in apartment offerings come from new construction, how many apartments are constructed?
QS = 70 + 7*9 （new price）
= 133
QS = 70 + 7*6 (market-clearing price)
= 112
New construction = (133 ? 112)*0.5
= 10.5 tens of thousands of apartment
Therefore 10.5 tens of thousands of apartments are constructed.
是不是这样啊???
