This paper studies how gifts - monetary or in-kind payments - from drug firms to physicians in the US affect prescriptions and drug costs. We estimate heterogeneous treatment effects by combining physician-level data on antidiabetic prescriptions and payments with causal inference and machine...

We examine provider responses to the expansion of public subsidies in 2015 for oral chemotherapy treatment, in a health system where providers were free to determine their own prices. Oral chemotherapy treatment was known to have similar efficacy to its traditional intravenous alternative and...