This paper develops a simple spatial model of fund-raising, in which charities select a target population to solicit donations. First, we show that in a competitive charity market without any intervention, the number of charities in the market and/or the overall net funds raised by charities may...

With the goal of lowering incentives for alcohol and substance abuse, U.S. states have historically permitted private health insurers to deny reimbursement of medical claims stemming from alcohol or opioid impairment. However, a potential unintended consequence of such "exclusion provisions" is...