EBay is trying to embrace increased demand for used and refurbished items from shoppers eager to save money. EBay Inc. gave a profit forecast for the fourth quarter that missed the average analyst estimate, stoking investor concerns about narrowing margins heading into the holiday shopping season. Most Read from Bloomberg Profit, excluding some items, will be $1.31 to $1.36 a share in the period ending in December, the company said Wednesday in a statement. Revenue will be $2.83 billion to $2.89 billion ...