Verizon Communications issued an upbeat assessment for 2014 following the closing of its deal with Vodafone to take full control of Verizon Wireless. The telecom predicted higher margins, improved cash flow and a 4% rise in revenue this year. The company also disclosed that it would form a product development and management arm designed to speed up the timing of new products. Verizon CEO Lowell McAdam on Monday also weighed in on net neutrality. He said heavier bandwidth users should pay higher fees but added that the carrier does not provide preferential treatment to any traffic.