Paraphrasing "jesting Pilate", "what is truth when academic superstars supposedly produce it?" is possibly the most important yet neglected question raised by the recent Reinhart-Rogoff (R-R) affair.
The essential facts of this episode are these: two Harvard professors, Carmen Reinhart and Kenneth Rogoff, used their academic research to become strong advocates in the policy realm, although not among fellow academics, of the need for fiscal austerity when economies approach a threshold level of debt-to-GDP ratio of 90 per cent. Their superstar reputations (deservedly earned through previous work) rendered their advocacy influential, even highly so, in the charged policy debates in the United States and all over Europe. The research - especially the critical and attention-grabbing finding of a sharp growth discontinuity at that 90 per cent threshold - was subsequently exposed as flawed.