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In the early 1930s, the US Senate enlisted a young economist named Simon Kuznets to figure out how badly the economy had been ravaged by the Great Depression, and whether policies were doing much to fix it. Back then, the government did not monitor the economy in a rigorous way. In fact, for a long time, the very concept of a single, nationwide entity known as “the economy” was alien to people, at least in the modern sense (for more on this, stay tuned for a Planet
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