The dollar-yen exchange rate is the most important macroeconomic indicator. In my last essay, “The Easy Button,” I wrote that something must be done to strengthen the yen. The solution I proposed was that the US Federal Reserve (Fed) could swap unlimited amounts of freshly printed dollars with the Bank of Japan (BOJ) for yen. This would allow the BOJ to give unlimited dollar firepower to the Japanese Ministry of Finance (MOF), with which they could purchase the yen in the global forex markets.