Does currency intervention abroad push bond yields higher?
Core argument: The yen came within a whisker of falling below Y150/$, a level at which many assume Japanese authorities would feel obliged to intervene to prop up the currency, as they did when it briefly topped that level a year ago.
In currencies, the US dollar continued its recent rampaging strength, with the yen coming within a whisker of dropping below the level of Y150/$, at which many assume the Japanese authorities would feel obliged to step in to prop up the currency, as they did when it briefly topped that level a year ago. Any intervention by Japanese authorities would likely send yields further upward, so this is a reason for caution about betting on them to fall in short order. The logic is that the Federal Reserve will be happy for yields to rise until they “break something,” at which point bonds’ prices would rise as their yields fell. That makes sense, but if the first thing to break is the patience of the Ministry of Finance in Tokyo, then such a bet on buying bonds would lose money.

