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What is Heteroskedasticity in Econometrics Analysis about?

The document describes a study investigating whether government expenditure crowds out investment. It provides data on government expenditure (G), investment (I), GDP (Y), and population (P) for 30 countries. A regression of I on G, Y, and their standard errors is presented. Heteroskedasticity tests including the Goldfeld-Quandt and White tests are then discussed and applied to the data to test for heteroskedasticity. Examples using hypothetical wage data are also provided to demonstrate applying these test

Author

Chathula Nayanalochana

Language

EN