Monitoring for Waste: Evidence from Medicare Audits

Working Paper: NBER ID: w31559

Authors: Maggie Shi

Abstract: This paper examines the tradeoffs of monitoring for wasteful public spending. By penalizing unnecessary spending, monitoring improves the quality of public expenditure and incentivizes firms to invest in compliance technology. I study a large Medicare program that monitored for unnecessary healthcare spending and consider its effect on government savings, provider behavior, and patient health. Every dollar Medicare spent on monitoring generated $24–29 in government savings. The majority of savings stem from the deterrence of future care, rather than reclaimed payments from prior care. I do not find evidence that the health of the marginal patient is harmed, indicating that monitoring primarily deters low-value care. Monitoring does increase provider administrative costs, but these costs are mostly incurred upfront and include investments in technology to assess the medical necessity of care.

Keywords: No keywords provided

JEL Codes: H00; H51; H53; I00; I10; I11; I13; I18


Causal Claims Network Graph

Edges that are evidenced by causal inference methods are in orange, and the rest are in light blue.


Causal Claims

CauseEffect
RAC audits (R50)Medicare spending on admissions (H51)
RAC audits (R50)unnecessary admissions (Y40)
monitoring (E63)low-value admissions (I24)
monitoring (E63)patient health outcomes (I14)
RAC audits (R50)compliance technology investment (O33)
compliance technology investment (O33)medical necessity assessment (I13)

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