The following commentary comes from an independent investor or market observer as part of TheStreet's guest contributor program, which is separate from the company's news coverage.NEW YORK ( TheStreet) -- Thursday, the Commerce Department is expected to report the deficit on international trade in goods and services was $48 billion in June. The trade deficit is the most significant barrier to jobs creation and growth in the U.S. economy. Simply, the U.S. economy suffers from too little demand for what Americans make. Every dollar that goes abroad to purchase oil or Chinese consumer goods that does not return to purchase exports is lost purchasing power that could be creating jobs. Halving the nearly $600 billion annual trade deficit would create at least 5 million jobs.