@PRoufos @KellyServick Term of art in the social sciences. An exogenous shock that enables you to track causation.
RT @BJMbraun: How to be an effective political economist: Laser focus on the neuralgic points of the state-market nexus, follow
RT @BJMbraun: How to be an effective political economist: Laser focus on the neuralgic points of the state-market nexus, follow the money,…