The idea of contaminated food being solved by a food safety rating industry set up to rate thousands of small South Asian market stalls for the benefit of poor

The idea of contaminated food being solved by a food safety rating industry set up to rate thousands of small South Asian market stalls for the benefit of poor and sometimes functionally illiterate customers after enough of them have traced their family members' deaths to the food supply sounds more like the sort of scenario raised to mock libertarians than 'perfect information', which is just a technical requirement for an ideally functioning market in economics (the theory that safety ratings industries can fill the gap is a theory of markets converging on consumers having all relevant information anyway) Even if we assume safety ratings for a complex food supply chain resulting in tens of thousands of one man businesses selling to people earning a dollar a day is a massive market opportunity, brands and safety labels are trivially copied by sufficiently people selling adulterated food, so they alone fundamentally don't solve the problem. Only a government can step in and regulate that IP, and at that point they might be better off just banning the poisoning...