Right, so this is  if we incorporate  expectations    in our model of supply response alright, so instead of saying that the the desired level of supply  instead of saying that, we say  it's actually this  right, if we actually incorporate expectations  specifically  alright, then we get a supply response model  alright, like this  and our hypothesis, y'know cos we don't know how expectations are formed, right, economics can't tell us anything  about how expectations are formed  are they rational, are they naive, are they adaptive, who knows, nobody knows  alright.