Discuss why bond managers use leverage, the instruments that create it, and the dangers it brings

Leverage lets a manager raise exposure or return on equity capital. With invested funds earning rI, borrowing cost rB, equity VE and borrowed VB, the return on equity is rE = rI + (VB ÷ VE) × (rI − rB). With rI 6%, rB 3% and VB ÷ VE 0.5, the leveraged return is 7.5%. Leverage can be created through futures, interest rate swaps, structured notes such as inverse floaters, repurchase agreements and securities lending. The risks are magnified losses when rI falls below rB, funding risk if repo lines are withdrawn or margin is called, forced sales at poor prices in stressed markets, and counterparty risk. The trap is treating derivative leverage as costless; it carries margin and liquidity demands.