A warning from @tylercowen:

If we tell companies they can& #39;t use supply chains that may have slave labor in them, "The losers will be U.S. consumers, who will face higher prices and less choice." 1/3 https://www.bloomberg.com/opinion/articles/2020-07-31/fight-slavery-with-boycotts-not-a-new-law-about-supply-chains">https://www.bloomberg.com/opinion/a...

Notice how much further his argument goes than "don& #39;t worry about child labor, families only choose that if it& #39;s their best option." Now, even stripping outright slavery out of the supply chain is a mistake, because things will get even worse in countries that tolerate it. 2/3

But the proposal isn& #39;t to punish countries that have behaved badly, it& #39;s to give them a choice: either ensure no slavery or lose the supply chains. Maybe they& #39;ll do something about slavery. Incentives matter! This is not among the outcomes @tylercowen seems to contemplate. 3/3