What is Decision Making? Let’s define decision making. Decision making is just what it sounds like: the action or process of making decisions. Sometimes we make logical decisions, but there are many times when we make emotional, irrational, and confusing choices. This page covers why we make poor decisions and discusses useful frameworks to expand your decision-making toolbox. Why We Make Poor Decisions I like to think of myself as a rational person, but I’m not one. The good news is it’s not just me — or you. We are all irrational. For a long time, researchers and economists believed that humans made logical, well-considered decisions. In recent decades, however, researchers have uncovered a wide range of mental errors that derail our thinking. The articles below outline where we often go wrong and what to do about it.