Our model takes the price level as given in the short run, but in reality the currency appreciation caused by a permanent fiscal expansion might cause to fall a bit by lowering some import prices....

Our model takes the price level

as given in the short run, but in reality the currency appreciation caused by a permanent fiscal expansion might cause
to fall a bit by lowering some import prices. Ifcan fall slightly as a result of a permanent fiscal expansion, is it still true that there are no output effects? (As above, assume an initial long-run equilibrium.)