One way to gauge the impact of trade on a nation is to measure:

Question

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Measuring the ratio of total imports and exports as a percent of a nation's GDP gives an indication of how much of a country's economy is dependent on trade. This can show the importance of trade to the nation and give an idea of the potential impact it has on the economy. A higher ratio can indicate a higher level of integration into the global economy, while a lower one implies less reliance on foreign trade.

One Way to Gauge the Impact of Trade on a Nation