There are growing job openings and a mismatch of needed skills, falling new weekly claims for unemployment insurance and rising voluntary quits. Besides the tight labor market, for the past five years, firms have been unwilling to reinvest in themselves, choosing instead to hoard large volumes of cash. As a result, capacity issues could constrain the rate of expansion of real physical output. David Rosenberg, of Gluskin-Sheff, indicates that he believes that noninflationary potential economic growth in the U.S. is between 1% and 2%, as opposed to the 4% view held by those who control economic policies. If correct, the U.S. is currently at or even above its noninflationary growth rate.