Sargent and Wallace and the Neutrality of Money Flashcards
To understand the roles of different agents in this model, as well as its implications
role of fiscal authority
finances constant primary deficit issuing debt
monetary authority
finances the shortfall via seigniorage
Budget constraint of the government
The sum primary deficit + the debt + interest on debt must sum to the new issuance of debt (in next period) + seignorage revenue
debt/GDP ratio _____ with the level of the deficit
increases
high growth rate of money means that the deficit is financed via more _______ and less ___
More seigniorage and less debt
catastrophe date T (when will it happen?)
The date when the debt/GDP ratio reaches its upper bound
catastrophe date implications
the fiscal authority can no longer issue debt, so the monetary authority needs to issue more money and tolerate inflation (i.e. seignorage is the only new source of revenue)
tradeoff of the monetary authority
low inflation today w/ earlier catastrophe date OR higher inflation today and postpone catastrophe date indefinitely
policy implications of Cagan model
persistent deficits are inflationary
proposal to solve the dilemma
fiscal consolidation and independent Central Banks and not running persistent deficits