Consider a market with four firms. Suppose the first firm has a 54% market share, the second firm has a 35% market share, the third firm has a 10% market share, and the fourth firm has a 1% market share. Using the Herfindahl-Hirschman Index (HHI), what is this market's level of concentration?   nothing. (Enter a numeric response using an integer.)

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In each of the following, what happens to the unemployment rate? does the unemployment rate give an accurate impression of what’s happening in the labor market? a. esther lost her job and begins looking for a new one. b.sam, a steelworker who has been out of work since his mill closed last year, becomes discouraged and gives up looking for work. c.dan, the sole earner in his family of 5, just lost his $90,000 job as a research scientist. immediately, he takes a part-time job at starbucks until he can find another job in his field.

You hold a diversified $100,000 portfolio consisting of 20 stocks with $5,000 invested in each. the portfolio's beta is 1.12. you plan to sell a stock with b = 0.90 and use the proceeds to buy a new stock with b = 1.50. what will the portfolio's new beta be? do not round your intermediate calculations.