|
| Year = | calendar year |
| I = | real gross private domestic investment (in billions of chained 1996 dollars) |
| GDP = | real gross domestic product (in billions of chained 1996 dollars) |
| CGDP = | GDPt - GDPt-1 |
| interest = | real interest rate = nominal yield on Moody's Seasoned Aaa Corporate Bond Index - inflation rate (measured by the annual % change in annual chained price index for personal consumption expenditures) |
Sources:
I, GDP, and annual percentage change in chain-type price index - Bureau of Economic Analysis, U.S. Department of Commerce (http://www.bea.doc.gov/bea/dn1.htm)
Moody's Seasoned Corporate Aaa Bond Yield (average of monthly data was used to create the annual yield) - Federal Reserve Bank of St. Louis Economic and Financial Database