Transportation

O​‌‍‍‍‌‍‍‌‍‌‌‍‍‍‌‍‌‌‌‍​ver the past 15 years, the percentage of containers imported to the US from Asia has declined for West Coast ports and increased f​‌‍‍‍‌‍‍‌‍‌‌‍‍‍‌‍‌‌‌‍​or East Coast and Gulf Coast ports. What are the factors driving this shift? Do you think this trend will continue? Why or why not​‌‍‍‍‌‍‍‌‍‌‌‍‍‍‌‍‌‌‌‍​?