On Tue, 6 Jul 2010, Michael Haenlein wrote:
Dear all,
I have a brief question regarding Moran's I: Is there any research on the
behavior of Moran's I for situations where the spatial weights matrix is
binary, i.e. only includes either 1 or 0? Does Moran's I require weights
that are distributed in a certain way in the [0,1] interval? Or is it
sufficient to know who is connected to whom (i.e., binary weights)?
Specifically, I'm interested in the question whether the use of binary
weights introduces any form of bias in the estimated value of Moran's I.
Moran's I is fine with binary weights, and was originally developed for
them. The "bias" is that entities with many neighbours get up-weighted,
just as row-standardisation down-weights those entities in favour of those
with few neighbours.
Roger
Thanks very much for your reply in advance,
Michael
Michael Haenlein
Associate Professor of Marketing
ESCP Europe
Paris, France
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Roger Bivand
Economic Geography Section, Department of Economics, Norwegian School of
Economics and Business Administration, Helleveien 30, N-5045 Bergen,
Norway. voice: +47 55 95 93 55; fax +47 55 95 95 43
e-mail: roger.biv...@nhh.no
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