Snack and beverage giant PepsiCo (PEP) beat analysts' expectations on higher volumes and prices. The maker of Pepsi Cola, Gatorade sports drink and Fritos corn chips reported adjusted fourth-quarter earnings of $1.09, down 5.2% from a year ago but 4 cents over views. Revenue climbed 2.1% to $19.95 billion, topping analyst forecasts for $19.7 billion. It guided for a 7% bump in 2013 earnings, which implies $4.39 per share. Analysts are expecting