128 Interaction terms introduction and intuition

Econometrics models often assume the effect of a variable is the same for everyone, but reality is more complex. This video introduces interaction terms, a powerful tool to understand how the effect of one variable can differ across groups. We explore how an interaction term allows us to see if an extra year of education impacts income differently for employed versus unemployed individuals. Learn how to build and interpret models that capture these nuanced relationships, moving beyond simple dummy variables to reveal true differences in effects. Discover how the interaction term specifically quantifies the change in effect between groups, providing deeper insights into your data. Visit AxiomTutoring.com and subscribe to @AxiomTutoringCourses.