Ibbotson Chen and BIRR

What is the Y in Ibbotson Chen model and what does the I in BIRR stand for?

Y represents expected yield on the index I stands for “Ibbotson” from Burmeister, Ibbotson, Roll, Ross (BIRR)

omg i cant recall BIRR model…what was it??

Confidence risk, timing risk, inflation risk, business cycle risk, market timing risk

Me too!!! Where was that

ah thanks stunnerrunner.

Alaa that devilary is on page 75 of equity curriculum.

Elan video gave me a good abbr: ct ibm