introduction paper: [https://www.federalreserve.gov/econres/feds/files/2019017pap.pdf](https://www.federalreserve.gov/econres/feds/files/2019017pap.pdf)

dataset: [https://www.federalreserve.gov/RELEASES/Z1/current/](https://www.federalreserve.gov/RELEASES/Z1/current/)