Managed care or carefully managed? Management of underwriting profitability by health insurers

Patricia H. Born, Evan M. Eastman and E. Tice Sirmans ()
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Patricia H. Born: Florida State University
Evan M. Eastman: Florida State University
E. Tice Sirmans: Illinois State University

The Geneva Papers on Risk and Insurance - Issues and Practice, 2023, vol. 48, issue 1, No 2, 5-31

Abstract: Abstract Managed care provides health insurers a unique opportunity for discretion over certain aspects of financial reporting. Specifically, managed care mechanisms provide health insurers with a stronger ability to engage in loss control. To test whether and how health insurers exploit their ability to manage losses, we examine whether insurers with greater opportunity to manage care report significantly better underwriting performance in the fourth quarter relative to other health insurers. Using quarterly statutory filings from 2003 to 2016, we find evidence that a health insurer’s share of enrollment in health maintenance organisation (HMO) plans, characterised by their use of ‘gatekeeper’ physicians, is significantly and negatively related to their reported fourth quarter medical loss ratio (MLR). Additionally, while we find that fourth quarter MLRs are higher for all health insurers following the implementation of the Patient Protection and Affordable Care Act (ACA), the ACA does not appear to have intensified the loss control efforts of those insurers with more enrollment in HMO plans.

Keywords: Health insurance; Affordable Care Act; Quarterly financial reporting; Managed care (search for similar items in EconPapers)
Date: 2023
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DOI: 10.1057/s41288-021-00239-1

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