Suppose that the central bank wants to slow down the economy by decreasing the money supply. The bankers estimate that the velocity of money is 2, and that the price level will decrease from 100 to 90 (deflation). Using the quantity equation of money, what will be the impact of an $80 million dollar decrease in the money supply on the quantity of goods and services in the economy, given an initial money supply of $800 million

White truffles are a very prized and rare edible fungus that grow naturally in the countryside near alba, italy. suppose that it costs $200 per day to search for white truffles. on an average day, the total number of white truffles (t) found in alba is t = 20x − x 2 , where x is the number of people searching for white truffles on that day. white truffles can be sold for $100 each. if there is no regulation, how many more people will be searching for white truffles than the socially optimal number?