Requiring graphic warning labels (GWLs) on cigarette packaging has become a highly contentious unresolved legal battle. The constitutionality depends, in part, on the likely impact of GWLs on smoking decisions, and whether they generate knowledge as opposed to emotional reactions against...

"This paper investigates the impact of Medicare HMO penetration on the medical care expenditures incurred by Medicare fee-for-service enrollees. We find that increasing penetration leads to reduced health care spending on fee-for-service beneficiaries. In particular, a one percentage point...