Final answer:
The most direct effect of providing more job training programs for fields with worker shortages would be a decrease in wages for high-skill workers.
Step-by-step explanation:
In the market for low-wage labor, a skills program will shift supply to the left, which will tend to drive up wages for the remaining low-skill workers.
However, in the market for high-wage labor, a skills program will shift supply to the right, leading to a decrease in wages for high-skill workers.
Therefore, the most direct effect of providing more job training programs for fields with worker shortages would be a decrease in wages for high-skill workers.