I am perfectly aware that an answer to this question could take slightly more than the usual, but this thing is making me nut. I don’t get if I make some sort of mistake in terms of calculation or if the authors use a peculiar notation.(adsbygoogle = window.adsbygoogle || []).push({});

This is the paper that I am referring to, in particular page 826-828.

My problem is with s'(α_{2})= α_{2}/(1+α_{2}).

It seems to me, this cannot be the first derivative of the proposal that has to be made as a function of the parameter α_{2}. Instead, it is simply the explicit version of s(α_{2})= α_{2}/(1+α_{2}) [then, no derivative around...]

Do I miss something?

Thanks for your feedbacks.

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# Fehr-Schmidt model and the Ultimatum Game [Economics]

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