Health insurance exchanges (HIE) are entities that organize the market for health insurance by connecting small businesses and individuals into larger pools that spread the risk for insurance companies, while facilitating the availability, choice and purchase of private health insurance for the uninsured. While there are legal issues that warrant consideration under a federal, state, or private exchange framework, those issues are not insurmountable barriers to implementation.
Jost, Timothy S., "Health Insurance Exchanges: Legal Issues" (2009). O'Neill Institute Papers. Paper 23.