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We present a theory linking the cyclicality of tax policy to inherited public debt. When debt is low, tax policy is countercyclical, in the sense that the government responds to low output by setting a low tax rate. Above a threshold level of debt, however, optimal tax policy becomes procyclical. This creates the possibility of self-fulfilling crises (“fiscal policy traps”), in which output is low because households expect high taxes, and the government sets high taxes because output is low. Our model suggests why highly indebted governments might implement procyclical tax policy even without facing high sovereign risk premia.

If bail-in is credible, risk premia on bank securities should decrease as funding sources junior to and alongside them in the creditor hierarchy increase. Other things equal, we find that when banks have more equity and less subordinated debt they have lower risk premia on both. When banks have more subordinated and less senior unsecured debt, senior unsecured risk premia are lower. For percentage point changes to an average balance sheet, these reductions would offset about two thirds of the higher cost of equity relative to subordinated debt and one third of the spread between subordinated and senior unsecured debt.