The U.S. economy continues to run cool to tepid. A recent flurry of weaker-than-expected data cast doubt on the stamina of the recovery. But James Swanson, chief investment strategist at MFS Investment Management, says the improvement in businesses’ capital expenditures will eventually generate job growth and bolster the economic expansion. Ethan Harris, co-head of global economics research at BofA Merrill Lynch Global Research, expects some improvement in job growth in the second half, but he notes that the economy remains vulnerable to shocks. And M. Cary Leahey, senior economist at Decision Economics, points to the housing market, with its huge inventory of unsold homes, as an impediment to a more vibrant U.S. economic recovery.