Through this course, you will learn how individuals and firms make financial decisions, and how those decisions might deviate from those predicted by traditional financial or economic theory. We will explore the nature of these biases and their origins, using insights from psychology, neurosciences and experimental economics on how the human mind works. From these biases, you will be able to examine how the insights of behavioral finance complement the traditional finance paradigm. We also look at the micro and macro biases. Finally, we will explore how these insights describe more complicated topics such as fat tail events and financial crises.