為替関係のNBER論文をもう一丁。Oleg Itskhoki(UCLA)とDmitry Mukhin(LSE)が表題のNBER論文(原題は「Optimal Exchange Rate Policy」)を上げている(ungated版へのリンクがある著者の一人のページ)。 以下はその要旨。 We develop a general policy analysis framework for an open economy that features nominal rigidities and financial frictions giving rise to endogenous PPP and UIP deviations. The efficient allocation can be implemented with monetary policy closing the outpu