Stock X and Stock Y have a correlation coefficient of .5. Stock X has an expected return of 10% and a standard deviation of 10%. Stock Y has an expected return of 14% and a standard deviation of 21%. What is the portfolio standard deviation if 60% of your wealth is invested in Stock X and 40% in Stock Y

Martha is one producer in the perfectly competitive jelly industry. last year, martha and all of her competitors found themselves earning economic profits. if there is free entry and exit, what do you expect to happen to the number of suppliers in the industry and the price of jelly? the number of suppliers will increase, and the price of jelly will fall. the number of suppliers will decrease, and the price of jelly will increase. the number of suppliers will increase, and the price of jelly will increase. the number of suppliers will decrease, and the price of jelly will fall.