A Maryland welding student cuts pipe in February. The number of U.S. apprenticeships hasn’t recovered since the recession.
LEXEY SWALL FOR THE WALL STREET JOURNAL

Theories abound as to why U.S. productivity growth has stalled. Economists attribute it to everything from a slowdown in business investment to inadequate measurement techniques that fail to capture efficiency gains from new technologies.
A recent research note from J.P. Morgan Chase offers another theory: It’s at least partly because the American workforce as a whole is simply less skilled than it used to be.
That matters because productivity growth drives wage growth, which by some estimates has stagnated Read More

Source:: wsj