Earlier quoted context omitted.
An agreed upon international base tax rate is the wrong solution. This becomes a minimum wage for nations and removes the incentive to compete to be the home of corporate headquarters. Border adjustment tax removes the tax shelter loophole and strengthens the incentive to be a good place to headquarter a corporation.
> This becomes a minimum wage for nations Why is that a problem? > removes the incentive to compete to be the home of corporate headquarters No, it shifts the means of incentives. It's no longer a race to the bottom tax rate. As I understand it, the problem with a border adjustment tax is implementation overhead; it would be expensive to audit. Noting that the IRS in the U.S. is not funded enough to investigate tax f…
Lets say that a corporation choosing a home nation is akin to you shopping for a good refrigerator. The refrigerator manufacturers don't like that one manufacturer is selling their equal quality fridges at 50% less than everyone else. There are two choices for manufacturers. Collude and fix the price of refrigerators or figure out what the 50% cut rate company is doing and try to compete. If the manufacturers choose collusion they can continue with business as usual without making improvements to cut cost or improve quality. But, they will cut cost, possibly sacrificing quality, as that is now the only way to increase revenue. The incentive to improve is removed and the risk of a refrigerator cabal outsider pricing at 50% increases. If the competitors instead choose to work on reducing cost or improving quality you as the consumer get cheaper higher quality fridges. Under the price fixing regime, when an outsider starts selling a fridge at 50% the fixed price the cabal either has to destroy them, bring them in the fold, or remove the price fixing.
With price fixing an outsider will always arise. Competition is the only solution that doesn't destroy itself.