(Nobel did not include an award in economics; it was only created in the 1960s with an endowment from a Swedish bank. So strictly speaking there is no Nobel prize for economics.)
At the very least, there needs to be a disclaimer that it includes one category not created by Nobel.
"The Nobel family dissociates itself from the economics prize. On October 11th, 2010, Peter Nobel, a lawyer and descendent of Alfred Nobel, issued a statement dissociating the Nobel family from the so-called Nobel prize in economics."
It's called "The Sveriges Riksbank Prize in Economic Sciences in Memory of Alfred Nobel", and the Nobel family has dissociated itself from this title and does not even want their name used in association with it.
Literature and Peace are extremely subjective and the peace prize especially is a token award which requires grand gestures but no results.
Meanwhile, as others have pointed out, Economics is technically not even a Nobel prize and also it is clearly still a dubious science in its infancy.