Seriously? I did not know that! No wonder why such an incompetent "economist" won it then...
haha, the "economy Nobel prize" is given by a central bank.. how ironic...
Wow, I didn't know that either. From the horse's mouth:
In 1968, Sveriges Riksbank (Sweden's central bank) established the Prize in Economic Sciences in Memory of Alfred Nobel, founder of the Nobel Prize. The Prize is based on a donation received by the Foundation in 1968 from Sveriges Riksbank on the occasion of the Bank's 300th anniversary. The first Prize in Economic Sciences was awarded to Ragnar Frisch and Jan Tinbergen in 1969.
The Prize in Economic Sciences in Memory of Alfred Nobel is awarded by the Royal Swedish Academy of Sciences according to the same principles as for the Nobel Prizes that have been awarded since 1901.
edit... Unless there are some shenanigans happening, it appears that it is as legitimate as the rest of the Nobel prizes (see bold above, also below)
It's presented by the same group. It has some association, but it's completely separate. It's like how the Paralympics has a loose affiliation with the Olympics, occur in the same city, but are different awards.