Collateral markets have become increasingly important as demand for collateral assets has increased in recent years, driven by changing market practices and an evolving regulatory landscape. This report explores whether and how the design of central banks' operational frameworks influences private collateral markets, including collateral availability, pricing, related market practices, and market performance under stress. It studies these issues by reviewing available information from a range of sources, including central bank case studies as well as surveys and interviews with private sector participants in collateral markets.[...]