combatting health care fraud. Between 2003 and 2017, Medicare spent $7.7 billion on 37.5 million regularly scheduled, non … more cost-effective than ex post ligation for preventing health care fraud …

care fraud. In this paper, we consider the diffusion of potentially fraudulent Medicare home health care billing in the … anti-fraud "strike force" offices. We hypothesize that patient-sharing across home health care agencies provides a …

We study fraud in the unemployment insurance (UI) system using a dataset of 35 million debit card transactions. We … verification systems between 2020 and 2021 to assess the effectiveness of screening for reducing fraud. Our findings suggest that … technologies. Our results indicate that identity screening may be an effective mechanism for mitigating fraud in the UI system and …

Screening requirements are common features of fraud and corruption mitigation efforts around the world. Yet imposing … beneficiaries on one hand and lower fraud on the other. We examine these trade-offs in one of the largest economic relief programs … measures of loan irregularities that are indicative of fraud. Moreover, our analysis reveals that a subset of borrowers with a …

One frequently overlooked aspect of the U.S.-style electoral college system is that it discourages election fraud. In a … judiciary. However, with the electoral college system in place, the incentives for fraud shift to swing states where the local … government is politically divided, and fraud is therefore more difficult and costly. Our theoretical model elucidates why the …

This paper develops a new approach to detecting electoral fraud. Our context involves repeaters, individuals voting in … the secret ballot itself reducing voter fraud. The pattern is also driven by smaller population counties, consistent with …