For-profit hospitals, sometimes referred to as alternatively investor-owned hospitals, are investor-owned hospitals or hospital networks. Many of the for-profit hospitals are located in Europe and North America, with many of them established particularly in the United States during the late twentieth century. In contrast to the traditional and more common non-profit hospitals, they attempt to garner a profit for their shareholders. The highest charging hospitals in the US are for profit, according to a study published in the journal Health Affairs in 2015.