Sabri Oncu :
"Heteroskedastic means non-constant variance. If you look at the way the data varies with time, the fluctuations are larger initially and the fluctuations attenuate as the time progresses, although they appear to get larger again towards the end. Moreover, you just have 13 observations. I would never reach any conclusions with that many observations."
Q: Is this the same as regression to the mean? Thx H
