This report was prepared jointly by authors at the Urban Institute and SHADAC for the Assistant Secretary of Planning and Evaluation (ASPE).  In it, the authors make the case that the value of the American Community Survey (ACS) for the purposes of monitoring and evaluating the ACA could be improved through the generation of subannual estimates of insurance coverage, because such estimates would provide a closer temporal link between state decisions and insurance outcomes than is discernable using annual estimates.  The authors explore the pathways by which subannual ACS estimates would be developed, the feasibility of these pathways, the challenges associated with the development of subannual ACS estimates, and potential next steps.  

This paper is accompanied by an issue brief: "Enhancing the Value of the American Community Survey for ACA Evaluation: Developing More Timely Estimates of Health Insurance Coverage."