Estimating money multiplier

[Clifford Poirot <cpoirot@xxxxxxxxxxx>]

I am curious if anyone knows (or knows where to find) the type of model
central banks use to estimate money multipliers. I would also be interested
if anyone has done any recent work on the usefulness of the money multiplier
model, particularly from a Post-Keynesian perspective.

In the interim, a few questions:

1. From a Post-Keynesian perspective, does the high powered money
(multiplier)=Ms model have any utility whatsoever (I suspect I would get
different answers from the hard core endogenous money theorists and from
those who do not think money is entirely endogenous)?

2. Is it possible to actually estimate a money multiplier from time series
data if you have uncertainty?

3. Would this estimate, have any utility in use in trying to hit money
supply and interest rate targets?

I have my own biases and suspicions on these questions but I am interested
in what others think, and specifically, on any Post-Keynesian or other
recent work on this.