Economics & Finance / Economic Theory / Development Economics
Mobile Phones Destroyed 60% of Boat Factories: How Market Integration Killed Bad Businesses in India
In India's Kerala boat-building industry, a natural experiment revealed a shocking truth: mobile phones didn't just change fishing—they obliterated 60% of local shipyards. Before 1998, 97% of fishermen only bought from their village's sole builder, trapped by invisible barriers of poor quality info. Top craftsmen made boats lasting 7.6 years; worst ones, 3.3 years. Yet prices were nearly identical. Then came mobile towers. As fishermen sold catch across ports, they swapped real-world boat lifespans. Within years, cross-village buying surged from 3% to 75%. Low-quality builders vanished. Surviving firms tripled output, slashed costs via labor specialization, and raised quality 32%. But not all winners: fishermen in once-good villages saw costs rise 3%. This is a real-world test of trade theory, showing info friction is the silent killer of growth. Based on Robert T. Jensen & Nolan H. Miller's paper, this video breaks down how a simple tech shift reshaped an entire industry.
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