WASHINGTON / AP A rising number of Americans are preparing to renovate their homes this year, a potential boost for the economy, according to projections released by Harvard University’s Joint Center for Housing Studies. The report estimates that spending on remodeling and repairs will climb 8.6 percent this year to $310 billion. The gains would bring renovations close to …

  LOS ANGELES / AP Robert Leviton’s loudest neighbour is a 12-lane freeway. The busy stretch of highway that runs alongside his townhouse complex is visible from his north-facing windows. The drone of passing motorists is audible throughout. He can even hear a muffled version of it when his windows are shut. “I was a little bit worried about how …

  Dallas / Bloomberg Southwest Airlines Co. reported first-quarter profit that beat analysts’ estimates and said it would speed retirement of its oldest Boeing 737s to better manage pilot training for a new model of the plane. Earnings excluding some items climbed 88 cents a share, beating the 84-cent average of analyst estimates that were recently compiled. Sales rose 9.3 …