Let’s say you are on Chapter 2 of Principles of Econometrics and need to run a Simple Linear Regression ($y = \beta_1 + \beta_2 x + e$).
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: Excel lacks a simple one-click button for robust standard errors. To fix this, you must transform your variables by dividing the equations by a weighting factor (Weighted Least Squares) or calculate logarithms of your variables ( =LN() ) to stabilize variance. Serial Correlation (Autocorrelation) Let’s say you are on Chapter 2 of
Principles of Econometrics emphasizes that OLS assumptions must hold true for estimates to be reliable. Here is how to test those assumptions in Excel: Heteroskedasticity : Excel lacks a simple one-click button for