Fresh from an international tour in which he sought to burnish his foreign policy credentials, Barack Obama will this week shift gears and seek to convince voters he would be better equipped than John McCain, his Republican rival, to run the sputtering US economy.

The presumptive Democratic nominee plans to meet a panel of advisers on Monday to examine his campaign’s ­economic policies. The gathering will include Warren Buffett, the billionaire ­investor, Eric Schmidt, Google’s chairman, Paul ­Volcker, the former Federal Reserve chairman, and ­both Lawrence Summers and Robert Rubin, the former Treasury secretaries.