1. Consider a bond with maturity 4 year, 100 face value, coupon 5%, and yield 5%. Compute a dollar duration numerically using a dy =0.001%. Recall that $Dur is approximately equal to [P(y+dy)-P(y)]/dy when dy is small and P(y) is the price of the bond at the yield y. Report you result rounded to the closest integer and the correct sign.

2. When calculating cash flow from assets, why is depreciation and change in net working capital added back and capital expenditures subtracted from net income?