Coca-Cola Co. received positive analyst reviews as confidence in its business outlook continued to revive. The marketer unveiled its new "Coca-Cola. Enjoy" ad campaign to bottlers Jan. 12. The previous day, Credit Suisse First Boston upgraded Coke to "strong buy" from "buy," citing good prospects for strong volume gains. PaineWebber Group on Jan. 13 gave Coke a "buy" rating and set a price target of $75 for Coke stock. In trading Friday, Coca-Cola closed at $61.06, up 0.5% for the week.