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LESSON 4 · Why Countries Trade

Fragility Revealed

The COVID-19 pandemic exposed supply chain fragility on a global scale. Factory shutdowns, port congestion, and labor shortages cascaded through interconnected networks, leaving shelves empty for everything from cars to groceries.

Toilet paper disappeared from shelves not because of production failures but because demand patterns shifted overnight from commercial to residential products. The system was optimized for normal times and had zero capacity to absorb the sudden shock of a global pandemic.