Explanation:

There are many differences in international and domestic trade, but the basic principals are the same. One of the main differences is cost. The cost of trading internationally is considerably higher than trading domestically. ... Modern cargo ships can carry a lot of freight, reducing the cost of shipping for everyone.This is true for many reasons. One reason is time. The time that it takes to transport goods across oceans can cost businesses money. There can be time wasted at borders, tariffs must be paid, and customs inspections can be cumbersome. However, with today’s ocean shipping logistics and advances in ocean freight transport, many of these problems are disappearing.