This paper initially analyzes the determinants of net domestic migration which occurred from 1995 to 2000 at the county level in the 4-Corners Region of the U.S. (Arizona, Colorado, New Mexico and Utah.) Regression techniques were used to explain approximately 70 percent of the variation in net migration rates within the region for counties whose populations exceeded 10,000 persons at the beginning of the period. The results of the study suggest net migration flows in the region are a dual function of both economic and non-economic characteristics existing within each county. The analysis is extended through the use of additional multivariate techniques in order to group the counties into clusters that reflect natural groupings based on a similar profile of variables used in the analysis. Migration activity differed statistically from cluster to cluster based upon variations in the predictor variables used in the analysis. Further research is suggested in order to extend these results to the broader economy
