Chapter 7, Dummy Variable - Miami University
education changes, wage changes at the same rate for female and male. 7. In chapter 6 we know interaction term can be used to allow the marginal effect of X to depend on another regressor. The regression with both dummy and interaction term of dummy and X is Y = 0 + 1D + 2X + 3(X D)+u (16) which can be rewritten as Y = { 0 + 2X +u; when D = 0 ...
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