Asset substitution (risk shifting). A distressed firm has debt with face value £1,000,000 due in 1 year. If it does nothing, asset value at year‑end will be £950,000. It can instead adopt a risky strategy (no upfront cost): with 50% probability assets become £1,400,000; with 50% probability assets become £200,000. Assuming creditors are paid up to face value, what is the change in bondholders’ expected payoff if shareholders choose the risky strategy rather than the status quo?