two sources of inertia, inattention to plan choice and switching costs. We develop a panel data model with separate … attention and choice stages, linked by heterogeneity in acuity, i.e., the ability and willingness to make diligent choices …. Using data from Medicare Part D, we find that inattention is an important source of inertia but switching costs also play a …

competition in basic health insurance markets. We identify several barriers to switching, namely choice overload, status quo bias …

products) can create switching costs in basic health insurance markets, thereby preventing competition in basic insurance from …