The Indus Valley civilians used granaries for c. storing food
It has primarily been the socialists and the communists who have believed that workers would overthrow wealthy business owners, since they feel that the current economic system of capitalism is flawed.
Answer:
as prices rose, less and less people were able to buy things,
unsold things piled up, so there was no need for production
in all, no one was working or buying, and this caused the economy to crash