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Economics 102

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Economics 102
Spring 2011
Answers to Homework #3
Due 3/7/11 at the lecture

Directions: The homework will be collected in a box before the lecture. Please place your name, TA name and section number on top of the homework (legibly). Make sure you write your name as it appears on your ID so that you can receive the correct grade. Please remember the section number for the section you are registered, because you will need that number when you submit exams and homework. Late homework will not be accepted so make plans ahead of time. Please show your work. Good luck!
You may use a calculator to do all of the calculations. Round all decimals to the nearest hundredth if necessary.
GDP Measurement
1. The expenditure approach tells us that
GDP = Consumption + Investment + Government spending + Net exports
Following is a link of the national income accounts released by the US Bureau of Economic Analysis. Various statistics of GDP are provided in around 10 tables. Find the corresponding numbers of nominal GDP, consumption, investment, government spending and net exports for 2010. Verify whether the above identity holds true or not. http://www.bea.gov/newsreleases/national/gdp/2011/pdf/gdp4q10_adv.pdf or you can go to http://www.bea.gov/national/index.htm#gdp and open the link named “PDF version of the Gross Domestic Products release”. Take a look at the tables even if they do not contain the information you are required to find. For example, table 9 shows the differences and connections among GDP, GNP, national income and the distribution of national income among various payments.
Ans.: Table 3 gives us all of the necessary information. All numbers are in billions of dollars.
Nominal: GDP=14660.2, consumption=10351.9, investment=1821.4, net export=-515.5, government spending=3002.3.
It’s easy to verify that the identity holds.
2. PengLai is a small island

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