We model the welfare consequences of portfolio mandates that restrict investors to hold firms with net-zero carbon emissions. To qualify for these mandates, value-maximizing firms have to accumulate d
In the 1990s the US hospital industry consolidated. This paper estimates the impact of the wave of hospital mergers on welfare focusing on the impact on consumer surplus for the under-65 population. F
In this paper, we investigate whether or not recent state and federal changes in welfare policy -- the imposition of time-limited benefits, the use of financial sanctions for non-compliance, and the s
