What is it about?
We illustrate some approaches to view interaction effects in binary choice (e.g., logit and probit) models graphically. Commonly reported marginal effects, computed either as an average or at mean values of other variables, may mask important insights that can be gained by employing these graphs to consider how the interaction effect may vary across the sample or for feasible values of other variables.
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Why is it important?
The marginal effects of interaction terms may vary in sign and significance across observations in the sample (or at different combinations values for other variables). Hence, relying on conventionally reported marginal effects without consulting these graphing methods may lead to erroneous conclusions.
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This page is a summary of: Graphical Illustration of Interaction Effects in Binary Choice Models: A Note, Journal of Agricultural Economics, December 2017, Wiley,
DOI: 10.1111/1477-9552.12257.
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