P02

30 Setembro 2015, 10:00 • DAVID LEITE DAS NEVES

Exercises 7.4, 7.5 and 7.8 of chapter 7 (Wooldridge 4ed).

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T04

29 Setembro 2015, 11:30 • DAVID LEITE DAS NEVES

Testing for differences in the regression functions across groups: the Chow test.

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T03

28 Setembro 2015, 10:00 • DAVID LEITE DAS NEVES

A. How to interpret the coefficients on dummies when the dependent variable is in logarithm: exact percentage vs. logarithmic approximation (example W7.5).

B. Using dummies for multiple categories: the dummy variable trap; comparisons against the base group; comparisons between any two groups in the regression equation; (example W7.6).

 

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P01

23 Setembro 2015, 10:00 • DAVID LEITE DAS NEVES

Exercises 7.1, 7.2 and C7.1 of chapter 7 (Wooldridge 4ed).

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T02

22 Setembro 2015, 11:30 • Isabel Proença

A single dummy independent variable (cont.):

Empirical examples; changing the group base; statistical significance; interpretation of coefficients of the dummy independent variable when the dependent variable appear in logarithmic form.

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