How did california request for statehood cause a crisis

I think it would be "The admission of California would upset the balance of power in the Senate between the Southern slave states and the Northern free states."

following type of cultural development caused people to want and buy new products on the market :

john maynard keynes developed new economic theories in response to the stock market crash of 1929. great depression of the 1930s. first and second world wars. economic boom of the 1950s.