In Chapter 4 we focus on the outcomes of entrepreneurial passion in terms of both profits and perils that can result from it. These profits and perils depend both on the type of passion the entrepreneur experiences (e.g., obsessive or harmonious) as well as the extent of that passion (e.g., how passionate they are about being an entrepreneur), and the targets of that passion (e.g., passion for inventing new products vs. passion for founding a new firm). As part of that discussion we incorporate not only the entrepreneur’s experience of passion but also how the passion they display to entrepreneurial stakeholders can lead to both productive and unproductive outcomes. We make important recommendations for how we should carry the study of potential profits and perils of both experienced and displayed passion forward in more conceptually and empirically precise ways.