同学们要注意了,今天想来助阵大家的考试,在这里给大家谈谈AP经济考试中的计算和图表题,想解决这部分的难点的话,赶紧来看看本期的AP宏观经济计算题与图表题重点讲解吧!
算GDP和通货膨胀指数
GDP两种算法:the expenditure approach & the income approach
The expenditure approach to calculating GDP is often summarized with the formula:
GDP =C+I+G+X
where C is consumption expenditures by households
I is investment by firms
G is government purchases
X is net exports= exports -imports
通货膨胀指数两种算法:
CPI=total cost this period /total cost base period *100
Inflation Rate =[CPI(this period)-CPI(previous period)]/CPI(previous period) *100
The CPI overstates the amount of inflation since it does not account for all quality improvements
GDP Deflator=GDP/Real GDP *100
real GDP & nominal GDP
The important feature is that prices are held constant ,so that any changes in the real GDP are the result of changes in the amount production.
base year: The year from which prices are taken to calculate real GDP is called the base year.
It does not matter which year is chosen as the base year.
In the base year, real and nominal GDP are equivalent.
要知道Inflation的成本,最值得关注的一点就是
Inflation tax---wealth is redistributed from lenders to borrowers
Fisher's Hypothesis
Nominal Interest Rate =Real Interest Rate+Expected Inflation
The nominal interest rate is the rate actually paid.
The real interest rate is the actual return the lender receives net of inflation.
要知道那些是不被算在GDP中的
1.secondhand
2.transactions that are purely financial
3.intermediate sales
4.要知道underground economy的存在,Underground economy的存在也说明了用GDP来表示The actual level of national output的缺陷
5.Unemployment rate ! discouraged workers are not a part of the labor force ,therefore it is not counted in unemployment rate.
Unemployment rate=unemployment people/labor force
labor force= unemployed people +employed people
其中过小的学员,退休的老人和不积极找工作的人都不算在labor force中!
According to Okuu's law, there is inverse relationship between unemployment rate and Real GDP!
Fiscal Policy and Monetary Policy
图表题重点
AP经济的大题出画图,出标注,这个图像不止Aggregate demand 和Aggregate supply哦题目中会给你些信息,让你画一个图,然后再标注些点……
图形的选择,知道各个图形表示什么的话大家一定没问题吧。
重点图有:Aggregate demand and Aggregate supply;Phillips Tradeoff;Money demand and Money supply;Loanable money supply and Loanable money demand.
同学们在做AP宏观经济题时选择题仔细审题,选项要看完,不要因为文字太多或选项太相似而忽略重要信息。
比如问的是原因还是结果:most likely lead to a decrease in inflationary expectations,是说物价会跌,问的是原因。既考inflationary expectation的定义,又考AS/AD model的变化。
FRQ解释要清楚,完整回答问题。图像注意标注,横纵坐标,如money market和loanable market不同的interest rate,exchange rate market纵轴的货币。
同学们,因为不管是英国前10还是美国前20的学校,基本都只接受4-理想分的成绩换学分,即接近满分的AP分数才对申请有意义。因此,如果你距离这个目标尚远,想在明年大考前进阶自己的理想分,点击预约试听【唯寻AP同步培训班】——
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筑梦牛剑/G5/常春藤