The growth trend in the U.S. manufacturing accelerated in November at the fastest pace in more than two years, according to the Institute for Supply Management’s. At 57.3, the ISM manufacturing index rose to the highest since April 2011, from 56.4 a month earlier pointing to a pickup in business spending. Orders, production and employment strengthened and the ISM gauge has increased six straight months. The median forecast of economists was 55.1. A very positive sign is that the ISM’s gauge of new orders rose to 63.6 last month, the highest since April 2011, from 60.6 in October.