The open collaborative philosophy employed in the success of open source (OS) software can be applied to hardware design. Specifically, the development of OS appropriate technologies (OSAT) can improve sustainable development efforts worldwide. Yet, widespread OSAT use is far from ubiquitous....

SUMMARYThis paper estimates whether state‐level implementation of community rating and guaranteed issue regulations in the non‐group health insurance market during the 1990s affected the decision of taxpayers to be self‐employed. Using a panel of tax returns that span 1987–2000, we find...

Prior research on adverse selection in health insurance markets has found only mixed evidence for adverse selection in group settings. We examine the impact of state community rating regulations enacted in the 1990s, which greatly limited insurers' ability to risk rate premiums, to determine if...