Before revision: He also stated in 2007 that as the US trades more with less-industrialized countries whose workers are paid less than equivalent US workers (2007 wages in Mexico were 1/ 10th what they were in the US, and in China less than 1/ 20th), that increased trade with those countries will put downward pressure on unskilled labor rates in the US.
After revision: He also stated in 2007 that as the US trades more with less-industrialized countries whose workers are paid less than equivalent US workers (2007 wages in Mexico were 1/ 10 what they were in the US, and in China less than 1/ 20),, increased trade with those countries will put downward pressure on unskilled labor rates in the US.