Intervention(s)
Treatment in this study will consist of letters sent (by postal mail) to households that have been determined eligible for marketplace coverage. Households in the study population will be randomized to one of four arms:
Arm 1, Control arm: No postal mail intervention.
Arm 2, Generic reminder letter: Households will receive letters that remind them of their eligibility for insurance through the Health Connector. These letters will not contain any personalized information about the specific plans or size of subsidies available to the household, nor a simplified enrollment option.
Arm 3, Personalized reminder letters: These letters will be generated to remind households of their insurance plan options (consisting of a maximum of only 4 options for the subsidized population we will target) through the Health Connector, including after-subsidy premium costs (and relevant cost-sharing information).
Arm 4, Streamlined-enrollment letter: These letters will be generated to reflect a household’s insurance plan options (consisting of a maximum of only 4 options for the subsidized population we will target), including after-subsidy premium costs (and relevant cost-sharing information). These letters would allow potential enrollees to enroll in coverage by simply checking a box for their preferred plan and returning the letter in an included prepaid envelope.