The theories we propose to use are specific neither to the object studied here, nor to the field of entrepreneurship in general; they were elaborated, proposed and tested in other contexts and other fields, but they nevertheless seem particularly relevant to the understanding of the various phases in our model. Because our field, entrepreneurship, is still in its early years, it does not have its own specific theories, although, as Lewin puts it, there is no better way to study a phenomenon than by resorting to a good theory. In light of this, and while waiting for the emergence of a theory specific to the entrepreneurial process, we have decided to use existing theoretical frameworks.