What were the underlying weaknesses in the economy that resulted in America's spiraling from prosperity to depression so quickly?

maybe i can

monopolies  came to the united states with the colonial administration. the large-scale public works needed to make the new world hospitable to old world immigrants required large companies to carry them out. these companies were granted exclusive contracts for these works by the colonial administrators. even after the american revolution, many of these colonial holdovers still functioned due to the contracts and land

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result of the incas claiming exclusive right over numerous traditional routes, some of which had been constructed centuries earlier mostly by the wari empire

they move troops weapons suplies food water shelter vehicles ect. hope this : 3