Medicare Advantage enrollment has almost doubled since 2010 and now accounts for more
than a third of all Medicare beneficiaries. We performed a systematic review to compare …

Context Medicare Part C, or Medicare Advantage (MA), now almost 30 years old, has
generally been viewed as a policy disappointment. Enrollment has vacillated but has never …

To combat adverse selection, governments increasingly base payments to health plans and
providers on enrollees' scores from risk-adjustment formulae. In 2004, Medicare began to …

The emerging role of Medicare Advantage, the private-plan alternative to traditional
Medicare, is gradually changing the Medicare program in ways that have important …

Objective: The purpose of this study was to evaluate the impact of objective isolation and
loneliness on Medicare spending and outcomes. Method: We linked Health and Retirement …

Health insurers increasingly compete on their networks of medical providers. Using data
from Massachusetts's insurance exchange, I find substantial adverse selection against plans …

Importance Atherosclerotic cardiovascular disease (ASCVD) is highly prevalent in the US,
with studies indicating substantial rates of nonadherence to and undertreatment with statin …

Importance How often enrollees with complex care needs leave the Medicare Advantage
(MA) program and what might drive their decisions remain unknown. Objective To …

A central question in the debate over privatized Medicare is whether increased government
payments to private Medicare Advantage (MA) plans generate lower premiums for …

The health economics literature contains two models of selection, one with endogenous
plan characteristics to attract good risks and one with fixed plan characteristics; neither …