A central mission of public economics has been to determine policies that optimize utilitarian welfare. To improve the realism of policy evaluation, it is desirable to enrich understanding of behavior and develop methods of analysis that use the enriched understanding to assess policies....

Our paper empirically examines how the decision to purchase private insurance and hospitalization are made based on household income, socio-demographic factors, and private health insurance factors in both Japan and the USA. Using these two data-sets, we found some similarities and...