This paper compares the evolution of regional disparities in per capita inc
omes in Canada and the 12 American states along Canada's southern border. T
he phenomenon of capital accumulation as described by the neoclassical grow
th model can explain much of the observed decline in regional dispersion in
Canada relative to the northern states. However, it appears that Canadians
are more likely than residents of the northern states to remain in regions
where they do not have jobs, a factor which contributes to the persistentl
y higher level of regional dispersion of output per capita in Canada.