 Samurai, whose income was in rice, panicked over the exchange rate into coin, and meanwhile speculators and various conspiracies within the brokers' community played games with the system, keeping vast stores of rice in the warehouses, which ensured low prices.A series of riots against the speculators, and against the conspiratorial, manipulative system as whole, erupted in 1733; starvation was widespread, and meanwhile, speculators were acting to "corner" the market and to control prices.This was the first of a number of riots, called "uchikowashi" (打壊し), which would grow in frequency and size over the next century or so.