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C i = 1 + 2 Y i + 3 W i + U i (1) Population regression model C i = b 1 +
Ci = 1 + 2 Yi + 3 Wi + Ui (1) Population regression model
Ci = b1 + b2Yi + b3 Wi + ei (2) sample regression model
Where. C = Consumption and Y = Income, and W = wealth
a) What additional independent variables can be included?
b) Express the sample model in a deviation form.
c) Using the OLS method, derive in detail b2 and b3 using the matrix method and Cramers Rule.
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