国际清算银行：通货膨胀与联合债券外汇跨越之谜（英文版）

We generalize the yield spanning condition in the bond literature to non-linear models and to exchange rates. In standard macro-finance models, no variable should predict yield or exchange rate changes once standard yield curve factors are controlled for. We provide novel evidence that this spanning condition is violated, with inflation as a common unspanned predictor of both bond and exchange rate returns. Investors’ incomplete information about the Federal Reserve’s monetary policy rule eme