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2026年4月7日 星期二

The Great Decoupling: When the Engine Left the Caboose Behind

 The Great Decoupling: When the Engine Left the Caboose Behind

For the better part of the mid-20th century, the American economy operated on a simple, almost sacred contract: if you worked harder and produced more, you got paid more. Between 1948 and 1973, productivity and real wages moved in a beautiful, synchronized dance. Economists Claudia Goldin and Robert Margo called this "The Great Compression"—a rare historical moment where the fruits of growth were squeezed downward toward the masses.


Then, around 1973, the music stopped. The lines on the graph snapped apart like a broken fan belt. By the end of 2025, productivity had surged to nearly three times its 1970 level, while real hourly compensation crawled along, barely reaching 1.7 times that same baseline. The engine of the American economy kept accelerating, but the workers in the caboose were left uncoupled, watching the train disappear into the distance.


Why did the cord cut? If you ask Thomas Piketty or Emmanuel Saez, they’ll point to a tax code that began favoring capital over labor with surgical precision. Others cite the slow death of unions, a frozen federal minimum wage, and the siren song of deregulation that began in the late 70s. But perhaps the most cynical—and delicious—theory comes from Daron Acemoglu’s Eclipse of Rent-Sharing. He suggests the rise of the MBA-educated manager shifted the corporate mindset from "sharing prosperity" to "squeezing the lemon." The modern manager isn't a builder; they are an extractor.


Of course, the "technicians" love to argue about the rulers used to measure this misery. They claim that if you swap CPI for the GDP deflator or count healthcare benefits as "pay," the gap shrinks. But even with the most creative accounting, the post-2000 reality is undeniable: the worker is producing a mountain of gold and being handed a handful of gravel. It seems the "invisible hand" of the market has become remarkably visible when it comes to keeping wages down.