1. What data represents U.S. imports and exports levels during the time (2005-2014)? How do they relate to other economic outcomes such as the GDP, foreign exchange rates, and so on? Explain it with the help of a graph.

2. What specific models developed throughout the course demonstrate how domestic and foreign events (e.g., wars, trade barriers, development abroad) have impacted the level of and changes in imports and exports in the United States?