Econ - expected inflation and shift in AD and AS

Hi, during one reading, I read the following in the section that talks about “when inflation is not anticipated”: - aggregate demand moves to the right (rises) in line with actual inflation - aggregate supply moves to the left (falls) in line with expected inflation Can someone helps me understand the above ? why in one case it’s “actual” and the other case it’s “expected” ? Tks

reference? where is this coming from?

CFA books tks

Which reading??

C+I+G+NX goes up with actual, not expected

Sorry my mistake It’s from ElanGuides 2011 , reading 25 : U.S. INFLATION, UNEMPLOYMENT, AND BUSINESS CYCLES