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Coefficients of divided sample both smaller than coefficients in full sample
Coefficients of divided sample both smaller than coefficients in full sample

I'm running a simple regression and comparing results with certain exclusion criteria. For example, I want estimates for

Y=X1+B2+XB3 if Year==2010 | Year==2011

as well as Y=X1+B2+XB3 if Year==2012 | Year==2013

The coefficients that I am getting for XB3 (an interaction term) are both smaller in these restricted samples than if I just run an estimate for the full sample (ie no "if" statement). Is that possible?

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Coefficients of divided sample both smaller than coefficients in full sample

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Home / Data Cleaning / Data management / Data Processing / Coefficients of divided sample both smaller than coefficients in full sample Coefficients of divided sample both smaller than coefficients in full sample

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