Dear StataList,

I would like to ask you a doubt if you would be so kind to respond. I calculated an OLS to estimate change in hours worked between year 2010 and year 2018, controlling for other factors. My coefficient is 8 minutes. However, when I calculate Oaxaca to decompose which part of these 8 minutes is explained and which one is unexplained, Oaxaca gives me a coefficient of total change of 12 minutes.

Could that be possible? Or Oaxaca should also give me the same 8 minutes, rather than a different number?

I would appreciate so much any hint, thank you so much.