If There Is a Shortage of Construction Workers, Why Aren't Employers Raising Pay?

It looks like another case where we have a skills mismatch. In a NYT column criticizing Sean Hannity's housing investments, Bill Sapotio tells us that the housing industry:

"still needs some 200,000 workers, with some of that shortfall no doubt linked to current immigration policy, or the fear of it. The need is so great that the Home Depot Foundation is putting up $50 million to help train and hire skilled workers."

The problem with this story is wages are not rising especially rapidly in co...