Source: Belsley (1991), Conditioning Diagnostics: Collinearity and Weak data in Regression, New York: Wiley, Exhibit 5.10. Taken From: Source Dimension: 28 observations on 4 variables Description: Annual aggregate consumption function for the U.S. for the years 1947-1974. Column Abrev. Description 1 t year 2 C(t-1) total consumption , 1958 dollars 3 DPI(t), disposable income, 1958 dollars 4 5 r(t) interset rate, (Moody's Aaa) 6 C(t) total consumption , 1958 dollars Model: E{C(t)} = b0 + b1 C(t-1) + b2 DPI(t) + b3 r(t) + b4