From boom to bust

Puerto Rico's 1920s sugar boom did not fizzle out gradually. It collapsed almost overnight, and one of the era's best-intentioned federal laws ended up making things worse in a way no one entirely planned at the time.

The 1920s had been genuinely good for parts of the island's economy. Sugar prices were high, cash flowed to farmers, and new schools, roads, and bridges were built on the strength of it. Private wealth grew, and commerce and banking expanded with it, giving the decade a real sense of advance.

The Great Depression, when it came in 1929, cut that streak off at the knees. Agriculture, still the island's main economic engine, along with industry and commerce, slowed hard through the 1930s, and the optimism of the previous decade evaporated quickly, leaving families that had barely seen real gains exposed again.

Hurricane San Ciprián made things worse when it struck on September 27, 1932, bringing agricultural production almost to a halt at the worst possible moment, just as the island's economy already staggered under the global downturn.

The federal response eventually came through President Franklin D. Roosevelt's New Deal, which authorized the Puerto Rico Reconstruction Administration to fund housing, infrastructure, and other capital investment on the island, a direct federal effort to counter the accumulated crises.

But not every federal policy helped. In 1938, a new federal minimum-wage law set wages at 25 cents an hour. About two-thirds of the island's textile factories closed as a direct result, unable to stay profitable at that rate. It is a genuinely counterintuitive outcome: a law made to protect mainland workers ended up closing a huge slice of the island's manufacturing base, because the policy was not designed with Puerto Rico's specific economic conditions in mind, and the workers it was meant to help lost their jobs.

Sources: Historia de Puerto Rico. Freeze 2026-08-22.