英语翻译The bivariate analyses in figure 5 support the associati

英语翻译
The bivariate analyses in figure 5 support the association between wages
and state-to-state migration rates predicted by the neoclassical hypothesis of
migration for the periods 1975-1980 and 1985-1990,but not for the period 1995-
2000.In 1975-1980 and in 1985-1990,state-to-state migration rates increased
with the wage parity index.The largest migration rates in these periods were
observed between states where the proportion of the labor force with high wages
in the state of destination was more than double the proportion of the labor force
with high wages in the state of origin.In 1995-2000 the largest migration rates
were observed between states where the proportion of the labor force with high
wages was the same.
There is a negative,nonlinear association between distance and state-tostate
migration rates.In the three periods of observation,migration ratesdecrease steadily as the distance between capital cities increases from 0 to 1000
miles.However,after 1000 miles,migration rates are invariant to distance.
The fifth and sixth graphs in figure 5 support the theory of cumulative
causation during the three periods of observation.State-to-state migration rates
increase with the number of natives from the state of origin that are living in the
state of destination as well as with the proportion of the population in the state of
origin that was born somewhere else.The effect of past migrants is larger during
1975-1980 than during 1985-1990 and 1995-2000,and migrants in the state of
origin seem to be more important than migrants in the state of destination.
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