From the question, we can see that the productivity in the United States is (45/9) = 5 times higher than that of Mexico.
Workers in Mexico are shielded against discrimination on the basis of age, gender, handicap, socioeconomic and marital status, race, national origin, sexual orientation, and religion. Protections are available before, during, and after employment.
The majority of the Southwest's businesses, including ranching and mining, are dominated by immigrants from Mexico and their offspring. For immigrants from Mexico, the expanding train system in America was particularly significant. Mexican immigrants were historically used by the railroad sector as a source of inexpensive labor.
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