I am looking for most comprehensive reports, data sources about Return Rates generated over long period in different asset classes.
Pitchbook periodically provides benchmarking data on private market returns by vintage across asset classes.
Here is the link to a recent version of such data: https://pitchbook.com/news/reports/2023-pitchbook-benchmarks-as-of-q2-2023
Here is the link to a recent version of such data: https://pitchbook.com/news/reports/2023-pitchbook-benchmarks-as-of-q2-2023