Why do countries trade with each other? How have the Internet and improved infrastructure around the world influenced the volume of trade? What effect do trade restrictions have on the U.S. economy, consumers and jobs? How may tariffs in particular impact other countries?

With higher volume of tariffs and more economic sanctions imposed by the U.S. on other countries experts argue that more countries will conduct international business in their own currencies instead of a dollar. China, Russia and India are already setting up many trade deals in their own currencies. Where do you think the U.S. dollar is heading when it comes to international transactions?

Up until this year, more than 60% of world's reserve currency holdings were in the U.S. dollars and about 90% of all global exchange trading involved the U.S. dollar. In the recent months, some countries started to deviate from the dollar in terms of their reserves. In your opinion, can the U.S. dollar remain the preferred global reserve currency or the downward trend will continue?