Editor: Sofiane Jaballah
Translated by: Mohamed Amine Jelassi

This study is the result of a scientific research project that spanned nearly a year, encompassing quantitative, qualitative, and descriptive field research, as well as the analysis of empirical data through multidisciplinary approaches. The researchers who conducted this study aimed not only to share the findings of their research with readers, but also to share the experience of writing about the phenomenon as it unfolds at all its levels. This includes the challenge of formulating the right questions to develop an approach capable of diagnosing the causes and mechanisms and providing answers to the questions of “what,” “why,” and “how” in relation to the issue of informality in the street economy of “Rue d’Espagne”. This is not merely treated as a case study, but rather as a starting point for expanding the research through future comparisons and generalizing the findings. The ultimate goal is to achieve a utopia envisioned by an entire generation of researchers: to lay the foundations for a Tunisian sociology capable of understanding and explaining social phenomena in Tunisia.