Unilever is sharpening its focus on profitability by lifting prices and cutting spending on everything from employee flights to product ingredients as activist investors take aim at consumer-goods giants wrestling with slow growth. The maker of Hellmann's mayonnaise and Dove soap said Thursday it's stepping up an efficiency drive as it responds to a failed takeover bid from Kraft Heinz Co. and rivals Nestle SA and Procter & Gamble Co. come under pressure from activists Dan Loeb and Nelson Peltz.