now you're incentivizing crime vigilantism without specific people involved. These have long histories of fraud and people abusing them for personal grievances along with all the issues related to human trafficking. That's why bounties are for specific people or relating to specific crimes as opposed to some thing where you can just, say, capture supposed prostitutes and turn them in for rewards.

Not that this isn't tried constantly. Heck, we did it in the war on terror and it basically just resulted in kidnapping and human smuggling.

It's not that these market approaches for social problems are impossible - they just usually need markets on top of markets on top of markets to fix incentives and distribute money around in a complicated way with a bunch of administrative overhead. At the end you get at best mediocre results at exorbitantly high cost and enormous complexity. For example, the american health care system...

The real problem is, especially in the USA, some people just totally lose their marbles and become frothing lunatics if anything even looks like it has a remote resemblance to anything socialisty so cost effective reasonable proven solutions that have worked many other places for decades are off the table and we get these 7-layer wedding cake Rube Goldberg machines because we want to show how ideologically pure we are in our demonstration of market efficiency

hah, the problem is, and now I'm getting into neoclassical economics, at scale farming is easier than foraging. As in, the cost of rat reproduction < cost of (rat discovery + capture + disease risk) so there's no place to set a bounty since it's always more efficient and reliable to produce rats than to competitively find them.

Incentive programs works for say cans, because the cost of pulling them out of the waste stream is less then the cost of building a factory to produce them. But for hearty robust animals that eat garbage and have lots of offspring, probably not.

As far as a working system, we should look to Alberta (https://alberta.ca/albertas-rat-control-program.aspx) - lots of free resources and budget is set aside for rat proofing and removal - as in calling in exterminators and DIY rat killing things (such as poison) are free.

Call that socialism if you want, it's worked for decades.