Health Insurance Exchanges (HIX) 2.0

An examination of ACA implementation across all 50 states.

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About This Collection

The Health Insurance Exchanges (HIX) 2.0 collection provides overviews and raw data on the implementation of the Affordable Care Act across all 50 states, including variation and each state’s key implementation decisions.

They are produced by Leonard Davis Institute of Health Economics through a grant from the Robert Wood Johnson Foundation. The briefs provide insight into which health insurance exchange features are most effective and which factors explain state variation. The datasets were collected from primary sources such as statutes and other regulatory decisions, official gubernatorial press releases, and other reliable news sources. Note: If you are using the datasets for research purposes, please include proper citation for the data, which are provided on each dataset's page. Datasets may be combined as implementation moves forward; the date the datasets were last updated, which is specified on each dataset's page.

Latest Briefs


The Skinny on Narrow Networks in Health Insurance Marketplace Plans

June 23, 2015

This brief is the first analysis of narrow networks to include data on individual physicians, as opposed to previous analyses that only explored the number of hospitals covered.


The Financial Condition and Performance of CO-OP Plans

February 9, 2015

Researchers analyzed the long-term financial viability of the Affordable Care Act's Consumer Operated and Oriented Plans (CO-OP). See their findings.


How to Improve on and State-Based Marketplaces

December 17, 2014

There’s still room for improvements in helping consumers make well-informed insurance plan choices, a new University of Pennsylvania report finds.

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Latest Datasets


Network Adequacy and Travel Standards Dataset

April 2, 2015

Network Adequacy and Travel Standards Dataset captures what states are doing to ensure that Qualified Health Plans maintain provider networks that are sufficient to ensure access to care without unreasonable delays


Medicaid Expansion and Federal State Division of Responsibilities Dataset

April 2, 2015

This dataset includes information regarding whether a particular state has decided to expand Medicaid and, if so, detailed information about the state's Medicaid expansion efforts.


Insurance Premiums 2013-2015 Dataset

April 2, 2015

Access health insurance premium dataset, 2013-2015, including average monthly costs for different demographics and metal tiers (for example, silver, gold, and platinum plans).

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