Introductory Stata 22: Marginal Effects (margins, marginsplot)

In this video, we will continue to use the "margins" command. We will produce the marginal effect of a continuous variable on the outcome variable by using the "dydx" option. The marginal effect is also called the partial effect because the other variables are held fixed.

#margins #marginsplot #Stata
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*22. Marginal Effects*
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set showbaselevels on

describe
summarize

*marginal effect of grade on lwage
*constant effect
generate lwage=ln(wage)
margins, dydx(grade)

*marginal effect differs between two union groups
margins, dydx(grade) at(union=(0 1))

*marginal effect changes with age
margins, dydx(grade) at(age=(34(2)46))
marginsplot

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