I see that the Yield Curve has inverted. As a result, I decide not to go on vacation and save extra money instead. This example suggests that the Yield Curve has a $\_\_\_\_\_\_\_\_\_\_\_$ effect on the economy. $($This question is worth $0\mathrm{.}5$ points$)$

Question $6$ options:

a$.$ Causal

b$.$ Non$-$causal$]$