Empirical investigations demonstrate that over the preceding two centuries, international shipping costs relative to U.S. import values have ?
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Answer: B. Decreased
Explanation
Technological advancements in maritime transport revolutionized global shipping logistics entirely. The adoption of standardized shipping containers drastically reduced cargo handling times. Larger cargo vessels achieved massive economies of scale, lowering transport costs relative to value. International trade depends heavily on efficient and cost-effective maritime transportation networks. Containerization transformed ports from labor-intensive hubs to automated logistical facilities. Shipping cost ratios compare transport expenses directly against total imported goods values.
Lower shipping costs have accelerated globalization and international supply chain integration. Consumers benefit from cheaper imported goods due to reduced international freight charges. Businesses can source raw materials globally because transportation expenses have declined. Increased shipping costs contradict historical empirical evidence from global trade data. Not changed ignores significant technological improvements in maritime shipping industries. Any of the above violates established historical economic facts regarding transport costs.
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