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World trade has grown substantially in the last 60 years. For example, while world output grew at an annual rate of 3.8% per year between 1950 and 2003, world exports grew at 10.8% per year over the same time period. Which of the following help to explain the increase in international trade and finance since the 1950s? Check all that apply. O Better high-speed rail lines O Improvements in telecommunications O An increasing number of import quotas O International trade agreements such as the North American Free Trade Agreement (NAFTA)