Check all the factors that would be associated with an increase in a firm's price-to-earnings ratio. All the correct factors must be checked to receive credit for getting this question correct (i.e., there is no partial credit). Increase in the beta of a firm's stock O Decrease in the beta of a firm's stock Increase in the risk-free rate O Decrease in the risk-free rate Increase in a firm's growth rate of cash flow Decrease in a firm's growth rate of cash flow Increase in the market risk premium Decrease in the market risk premium