Definição de Krugman do que é um "Teórico Acidental" (ou, talvez melhor, do "Teórico Diletante"; ou ainda, do "Diletante Convencido")

Oh! Quantos há por esse mundo fora!

"'Accidental' Theorist': someone who does not think issues through, but who just looks at surfaces without peering into depths or thinking coherently and whose thought is thus shaped by implicit, unexamined theories of which he is not conscious" 

DeLong: Review of Paul Krugman, The Accidental Theorist - Grasping Reality with Opposable Thumbs