1. Water carriers played a dominant role in the transportation system of the United States in the 18th and 19th centuries. Why has their relative position declined during the 20th century? Are they...

1. Water carriers played a dominant role in the transportation system of the United States in the 18th and 19th centuries. Why has their relative position declined during the 20th century? Are they still an important component of the total transportation system? Why or why not?

2. What would be the impact of higher fuel charges on the water carrier industry? Provide a rationale for raising their user charges.