What external control mechanisms are most effective in detecting corporate fraud? To address this question we study in … depth all reported cases of corporate fraud in companies with more than 750 million dollars in assets between 1996 and 2004 …. We find that fraud detection does not rely on one single mechanism, but on a wide range of, often improbable, actors …

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 …