Principles of Economics 2e
Principles of Economics 2e
2nd Edition
ISBN: 9781947172364
Author: Steven A. Greenlaw; David Shapiro
Publisher: OpenStax
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Chapter 19, Problem 15RQ

What is the difference between a series of economic data over time measured in nominal terms versus the same data series over time measured in real terms?

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How do you convert a series of nominal economic data over time to real terms?
The United States gross national product in trillions of dollars for the latter half of the 1980s is given in the table below. Year 1985 1986 1987 1988 1989 GNP ($trillion) 4.02 4.23 4.52 4.88 5.20 1. Using technology, calculate the average rate of change for each year. You may, for example, make a table in a spreadsheet with Year, GNP, and Average Rate of Change, as the three columns. What are the independent and dependent variables? 2. Using technology, create a plot of GNP vs year. Does the data appear to be linear? Explain. 3. Using technology, construct a linear trendline and determine the R2 value. What is the trendline equation? Interpret the slope, including units. What is the R2 value? Is there a strong or weak correlation? 4. Using the trendline equation, create a spreadsheet table and second plot of GNP vs year, extending the data through 1995. What GNP does your trendline predict for 1993? Explain in the context of the problem. 5. In what year does the trendline predict the…
Draw and label a graph for aggregate economic activity over time, including all of the parts of the business cycle.

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Principles of Economics 2e

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