It was not one of the prizes established by Nobel in his will. This prize was created in 1968.
It is not a Nobel Prize. It is wrong and misleading to call it a "Nobel Prize".
> In 1968, Sveriges Riksbank (Sweden's central bank) funded the establishment of the Prize in Economic Sciences in Memory of Alfred Nobel, to also be administered by the Nobel Foundation.
> Peter Nobel describes the Bank of Sweden Prize in Economic Sciences in Memory of Alfred Nobel as a "false Nobel prize" that dishonours his relative Alfred Nobel, after whom the prize is named, and considers economics to be a pseudoscience.
https://en.wikipedia.org/wiki/Nobel_Prize#Status_of_the_Econ...