Based on an analysis of Hispanic wages over the past six decades, Borjas concludes that, due to differing incentives to assimilate and other factors, Puerto Rican immigrants will wait twenty-five years before the assimilation process is reflected in their wages and Mexican immigrants will wait fifteen years.
博尔哈斯根据对过去60年中西班牙裔薪资水平的分析得出结论，因为受美国社会同化的动力和其它因素上所存在的差异，波多黎各移民的工资收入需要等上25年才会反映出其同化进程，而墨西哥移民则需要15年。