Annual trade deficits are always detrimental to their nation's GDPs and thus, to their numbers of jobs. The trade policy described with Wikipedia's “Import Certificates” reduces, (if not eliminates) its nation's trade deficit of goods. If the policy were to be adopted by the USA, it would increase our GDP and numbers of jobs more than otherwise. It's conceivably as close as possible to be “bulletproof”; (i.e. immune from mischief). Respectfully, Supposn Excerpted from: https://www.nytimes.com/2018/01/08/b...e=sectionfront Tax law may send factories and jobs abroad Under the new law, income made by American companies’ overseas subsidiaries will face United States taxes that are half the rate applied to their domestic income, 10.5 percent compared with the new top corporate rate of 21 percent.