Which of the following conditions must hold true for the constant growth valuation formula to be useful and give meaningful results? the company’s stock cannot be a zero growth stock. the company’s growth rate needs to change as the company matures. the required rate of return, r s , must be greater than the long-run growth rate.

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?