To explore the propagation of undesirable policies in a form of populist extremism, we construct a social learning model featuring agency problems. Politicians in different countries sequentially implement a policy. Voters learn the incumbent politician's type and the desirable policy by...

Under capital tax competition, surprisingly, Ogawa and Wildasin (2009, American Economic Review, 99(4), 1206-1217) find that uncoordinated policymaking leads to a first-best outcome even in the presence of transboundary pollution.However, I show that if the level of environmental regulation is...