On 14 April 2016, Oxfam International published a briefing that discusses how the American tax regime facilitates corporate tax avoidance practices.  The report estimates that the 50 biggest U.S. companies have hidden over 1 trillion dollars in overseas tax havens.  According to Oxfam, these illicit  tactics drain billions of dollars from the poorest countries in the world, contribute to soical inequality and hinder economic growth.