Greenwood M J, Ladman J R, Siegel B S
Demography. 1981 Aug;18(3):369-88.
Comparable lifetime migration relationships are estimated for Mexico for 1950, 1960, and 1970. Moreover, migration flows from each state to every other state are separately examined for each year. A number of significant changes over time are evident in the responsiveness of Mexican internal migrants to various socioeconomic stimuli, and appreciable differences are also evident across space. Moreover, a threshold is observed such that up to about 340 miles higher origin earnings deter migration, but beyond this distance higher earnings actually encourage migration.
我们估算了1950年、1960年和1970年墨西哥类似的终生迁移关系。此外，还分别考察了每年从每个州到其他各州的迁移流。随着时间的推移，墨西哥国内移民对各种社会经济刺激的反应出现了一些显著变化，而且在空间上也存在明显差异。此外，还观察到一个阈值，即当原居地收入高出约340英里时会抑制迁移，但超过这个距离，更高的收入实际上会促进迁移。
