Governments use coercion to aggregate distributed information relevant to governmental objectives-from the prosecution of regime-stability threats to terrorism or epidemics. A cohesive social structure facilitates this task, as reliable information will often come from friends and acquaintances....

This paper shows that, in the canonical dynamic rational expectations equilibrium model, public information about future noise trading is potentially detrimental to contemporaneous price efficiency. Our result supports concerns that social sentiment investing, sparked by growing availability of...

Governments use coercion to aggregate distributed information relevant to governmental objectives-from the prosecution of regime-stability threats to terrorism or epidemics. A cohesive social structure facilitates this task, as reliable information will often come from friends and acquaintances....