This looks like an interesting report detailing a theoretical framework including the history of gold as money, the cycles of gold, and it’s manipulation, followed by a market analysis and a discussion of possible monetary system reform.  Here’s the link:  https://www.skalcapital.com/wp-content/uploads/2019/09/The-Future-of-Gold-from-2019-to-2039-v.1.0.6.pdf

Enjoy