USA: Richer Rich, Poorer Poor
In fact, quantitative economic studies (Beatty, 1996; Cassidy, 1995; Frannk & Cook, 1995; Mishel, 1995) have focused on four variables (many more than four have been proposed, but these four have been the most extensively studied). One proposed factor is technology. For example, the argument is that computers raise the productivity of those who can use them and, thus, cause their wages to rise. In contrast, computers displace the jobs of many unskilled workers (mailroom sorters, bank tellers, etc.), thus putting downward pressure on their wages (Cassidy, 1995). Similarly, a second factor discussed is that the rising immigration of unskilled workers into the United States puts downward pressure on the wages of the lower-paid workers because it creates an oversupply of unskilled labor. A third argument is that globalization increase income disparity because corporations can outsource unskilled and semiskilled (and increasingly skilled) labor to countries with lower wage rates, thus ...