Adjustment is not complete, it's partial  alright, so we're going to say  that supply adjusts in the following manner, right, according to the partial adjustment  hypothesis  alright, so changes in actual supply  alright, will be  delta  of  the difference between the desired level of output for T, right  and the actual level of  input T  minus one  alright, plus  er   alright, so that was just our partial adjustment model  that we looked at last week, right, we'll call that equation three    okay  right.