Observed Capital Structures Refer to the observed capital structuresgiven in Table $13\mathrm{.}5$ of the text. What do you notice about the types of industries with respect to their average debt$-$equity ratios? Are certain types of industries more likely to be highly leveraged than others? What are some possible reasons for this observed segmentation? Do the operating results and tax history of the firms play a role? How about their future earnings prospects? Explain.