というNBER論文が上がっている(ungated版)。原題は「Currency Wars, Trade Wars, and Global Demand」で、著者はOlivier Jeanne(ジョンズ・ホプキンス大)。 以下はその要旨。 This paper presents a tractable model of a global economy in which countries can use a broad range of policy instruments---the nominal interest rate, taxes on imports and exports, taxes on capital flows or foreign exchange interventions. Low demand may lead to unemployment because