This useful ratio summarizes the amount that each single unitholder will receive as a trust payment (similar to a dividend for preferred shares). Trust payments are mandatory for income trusts as long as there are positive earnings for a particular period. The more income the trust earns, the more will be paid out in the form of trust payments. Some business analysts argue that the nearly 100% distribution of earnings before income taxes to unitholders is a negative thing for firms, as there is little money left over to re-invest into the business in order to stimulate growth.