@im_uname 26 January 2020

Voluntary investing in public works with or without assurance contracts

Without assurance contracts: https://en.wikipedia.org/wiki/Assurance_contract

With assurance contracts:

With Dominant Assurance Contracts : https://en.wikipedia.org/wiki/Assurance_contract#Dominant_assurance_contracts

*Note that you can mimic dominant assurance contracts even without a risktaking entrepreneur by offering benefits for pledges, such as good publicity for partaking in an assurance contract.