宏观经济学计算题

Question

7. A college graduate in 1970 found a job paying $10,000 per year. The CPI was 40 in 1970. A college graduate in 2000 found a job paying $30,000 per year. The CPI was 120 in 2000. The real pay to the 2000 graduate was equal to _____ per year.
8. If a labor contract requires the real wage to rise by 5% while the CPI equals 120 in year one and 132 in year two and if if the money wage in year one is $24, then the contract requires the money wage in year two to rise to _____.
If a bank deposit earns a simple nominal return of 31.1% while at the same time (one year) the price of a shmoo increases from $10 to $12, then the SIMPLE ONE-YEAR REAL return from the deposit will be _____%.

Answer 1

7. no answer. They didn't say anything about the base year. But if they assume the base year is 1970, then the answer is simply $10,000.

8. 24*132/120*(1+5%) = $27.72

追问

七题答案是25000。real wage= nominal wage/cpi=25000.八题对的。可以讲解一下么。然后还有一道可以讲下么

追答

7. 这么做。30000/(120/100) = 25000.
8。 24是现在。合同要求每年实际涨5%。所以要乘个（1+5%）。同样，CPI从120涨到132。也要把CPI因素考虑进去，再乘个（132/120）。
9. 名义是31.1% 考虑CPI，求实际。31.1%/(12/10) = 25.92%

追问

答案9.25，虽然错了。但是还是谢了

Answer 2

10000
24*（1+5%+10%）=27.6