> For the complete documentation index, see [llms.txt](https://whitepaper.abundance.id/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://whitepaper.abundance.id/protocol/key-concepts.md).

# Key Concepts

- [The function of money](https://whitepaper.abundance.id/protocol/key-concepts/the-function-of-money.md)
- [The problem of public goods](https://whitepaper.abundance.id/protocol/key-concepts/the-problem-of-public-goods.md)
- [Regenerative economics](https://whitepaper.abundance.id/protocol/key-concepts/regenerative-economics.md)