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At Google I did a piece of research, along with a statistician, of whether it's better to settle or fight.

"Better" would mean you don't get sued as much in the future, because you're a hard target and not easy money.

They haven't released this study, AFAIK.

your definition of "better" implies the results of the study, although you did not specifically say it.

That's because it's not published, plus a conclusion without any supporting data and methodology is pretty worthless.