A) Diversification occurs when stocks with low correlations of returns are placed together in a portfolio. Identify at least one type of firm that might exhibit low correlations of returns with the overall stock market? Explain why the correlations of these firms are expected to be low.
B) In general, the cost of debt capital is lower than the cost of equity capital. For this reason, it might be expected that firms with high debt ratios would have a lower weighted average cost of capital. Explain at least one reason why this is not the case.