Refer to the following model.

X$=00+$ Bost $+$ B$15+-1+$ B$251-2+$ B$35+-3+44$

Bo $+$ B$1+$ B$2+$ B$3$ represents:

the parameters

the short$-$run change in y given a permanent increase in s$.$ the long$-$run change in y given a permanent increase in s$.$

the long$-$run change in y given a temporary increase in s$.$