# 6.2 Adjusting nominal values to real values  (Page 2/9)

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Let’s look at an example at the micro level. Suppose the t-shirt company, Coolshirts, sells 10 t-shirts at a price of $9 each. Then, In other words, when we compute “real” measurements we are trying to get at actual quantities, in this case, 10 t-shirts. With GDP, it is just a tiny bit more complicated. We start with the same formula as above: For reasons that will be explained in more detail below, mathematically, a price index is a two-digit decimal number like 1.00 or 0.85 or 1.25. Because some people have trouble working with decimals, when the price index is published, it has traditionally been multiplied by 100 to get integer numbers like 100, 85, or 125. What this means is that when we “deflate” nominal figures to get real figures (by dividing the nominal by the price index). We also need to remember to divide the published price index by 100 to make the math work. So the formula becomes: Now read the following Work It Out feature for more practice calculating real GDP. ## Computing gdp It is possible to use the data in [link] to compute real GDP. Step 1. Look at [link] , to see that, in 1960, nominal GDP was$543.3 billion and the price index (GDP deflator) was 19.0.

Step 2. To calculate the real GDP in 1960, use the formula:

We’ll do this in two parts to make it clear. First adjust the price index: 19 divided by 100 = 0.19. Then divide into nominal GDP: $543.3 billion / 0.19 =$2,859.5 billion.

Step 3. Use the same formula to calculate the real GDP in 1965.

Step 4. Continue using this formula to calculate all of the real GDP values from 1960 through 2010. The calculations and the results are shown in [link] .

Converting nominal to real gdp
Year Nominal GDP (billions of dollars) GDP Deflator (2005 = 100) Calculations Real GDP (billions of 2005 dollars)
1960 543.3 19.0   543.3 / (19.0/100) 2859.5
1965 743.7 20.3   743.7 / (20.3/100) 3663.5
1970 1075.9 24.8 1,075.9 / (24.8/100) 4338.3
1975 1688.9 34.1 1,688.9 / (34.1/100) 4952.8
1980 2862.5 48.3 2,862.5 / (48.3/100) 5926.5
1985 4346.7 62.3 4,346.7 / (62.3/100) 6977.0
1990 5979.6 72.7 5,979.6 / (72.7/100) 8225.0
1995 7664.0 82.0  7,664 / (82.0/100) 9346.3
2000 10289.7 89.0 10,289.7 / (89.0/100) 11561.5
2005 13095.4 100.0 13,095.4 / (100.0/100) 13095.4
2010 14958.3 110.0 14,958.3 / (110.0/100) 13598.5

There are a couple things to notice here. Whenever you compute a real statistic, one year (or period) plays a special role. It is called the base year (or base period). The base year is the year whose prices are used to compute the real statistic. When we calculate real GDP, for example, we take the quantities of goods and services produced in each year (for example, 1960 or 1973) and multiply them by their prices in the base year (in this case, 2005), so we get a measure of GDP that uses prices that do not change from year to year. That is why real GDP is labeled “Constant Dollars” or “2005 Dollars,” which means that real GDP is constructed using prices that existed in 2005. The formula used is:

Rearranging the formula and using the data from 2005:

Comparing real GDP and nominal GDP for 2005, you see they are the same. This is no accident. It is because 2005 has been chosen as the “base year” in this example. Since the price index in the base year always has a value of 100 (by definition), nominal and real GDP are always the same in the base year.

Look at the data for 2010.

Use this data to make another observation: As long as inflation is positive, meaning prices increase on average from year to year, real GDP should be less than nominal GDP in any year after the base year. The reason for this should be clear: The value of nominal GDP is “inflated” by inflation. Similarly, as long as inflation is positive, real GDP should be greater than nominal GDP in any year before the base year.

What is the role of price system in The market economy
(1).Income is the main determined of macro economics. (a). true (b). false
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Anjali
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Manisha
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The
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SHWETA
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What is the cost-benefit analysis?
A cost benefit analysis is a process by which organizations can analyze decisions, systems or projects, or determine a value for intangibles. The model is built by identifying the benefits of an action as well as the associated costs and subtracting the costs from benefits.
sanga
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Hannah
Cost benefit analysis is a process used primarily by businesses that weighs the sum of the benefits, such as financial gain, of an action against the negatives, or costs, of that action.
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The next best option forgone is call the Opportunity cost of selection one.
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why do we put tariff on import goods
Maybe to give national enterprises better opportunities than foreign ones... or just to get more money to the national budget in any way possible. I suppose it allows also to control import and therefore its influence on national economy and other countries economy too.
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please what is the answer for the following question; derive the expression for a two sector Keynesian model from sowotuom land economy and state all the two components in the expression.
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Macroeconomics covers aggregate or in simple words overall economy of country or world while microeconomics was just concerned with individual economies
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How aggregate demand and output gap are related explain in the light of keynesian cross diagram