| Abstract: | The effects of the changing spatial distribution of the population in the United States are examined. "Hypotheses concerning the changing relationship of sustenance organization components and nonmetropolitan net migration rates between the 1960s and 1970s are tested. Multiple regression analysis reveals the following changes in the demographic impact of five types of economic activity from the 1960s to the 1970s: manufacturing--positive to insignificant; agriculture and mining--negative to positive; service--positive effect increases; and retail--insignificant for both periods." The author notes that "the introduction of settlement pattern characteristics as control variables does not change these relationships. The R squared] for all the sustenance activity variables taken as a whole is 21 percent for 1960 and six percent for 1970, suggesting that alternatives to the traditional explanations of nonmetropolitan demographic change should be more fully developed." |
