Foreign Importers:

Yes, if they actually decided to participate in the discount policy by matching its percentage.

Foreign Importers would also need to understand that the policies of Wisdomics-Gracenomics would enable US based businesses to fully benefit from the discount being applied by all of its domestic vendors throughout the entirety of the economic/productive process. Also, the policies of Wisdomics-Gracenomics would enable the US to rapidly re-industrialize and produce the same types of products in the most efficient technological and economic way.

US Exporters:

Yes, so long as all such revenues and profits from such sales remain patriated in the US.