<div dir="ltr"><div> </div><div>...by city-block distance, which is the distance-measure that can be justified for issue-space.</div><div> </div><div>Suppose there are a number of issue-dimensions. For smplicity, say there are an even number of voters.</div>
<div> </div><div>Suppose that candidate C is at the voter-median. So, in each dimension, there are equal numbers of voters each side of C.</div><div> </div><div>Suppose that, in the X dimension, C moves just far enough to pass one voter in that directon, in the X dimension.</div>
<div> </div><div>Now, as C continues moving in that direction, s/he is moving away from more voters than s/hes is moving toward. Therefdore, s/he is decreasing hir SU.</div><div> </div><div>That would be true in any dimension.</div>
<div> </div><div>C's initial startng point, at the voter-median, maximizes C's SU.</div><div> </div><div>Michael Ossipof</div></div>