ON RRP is overnight reverse repurchase agreement. Source: Figure 2 in Jane Ihrig and Scott Wolla (2022), “Let’s Close the Gap: Updating the Textbook Treatment of Monetary Policy,” Journal of Economic Education, vol. 53 (3), pp. 232–49.
4  Source: Figure 3 in Jane Ihrig, Zeynep Senyuz, and Gretchen Weinbach (2020), “The Fed’s ‘AmpleReserves’ Approach to Implementing Monetary Policy,” Finance and Economics Discussion Series 2020022 (Washington: Board of Governors of the Federal Reserve System, February), https://doi.org/10.17016/FEDS.2020.022.