Template-Type: ReDIF-Article 1.0 Author-Name: Taoufik DAGHRI Author-Email: ezzarzaria@gmail.com Author-Workplace-Name: Faculty of Law, Economics and Social Sciences of salé, Mohamed V University, Rabat, Morocco Author-Name: Amal BOUIZZEM Author-Email: Amal-bouizzem@hotmail.com Author-Workplace-Name: Faculty of Law, Economics and Social Sciences of salé, Mohamed V University, Rabat, Morocco Title: Measuring and Managing Positive and Negative Externalities of New Business Creation: Toward Sustainable Entrepreneurial Ecosystems Abstract: The creation of new businesses is a fundamental driver of contemporary economies, yet its societal impacts extend beyond the firm level. This study examines the positive and negative externalities generated by entrepreneurship, focusing on economic, social, and environmental dimensions. Drawing on recent empirical evidence, international reports, and policy analyses, a conceptual framework is proposed to assess and manage these externalities. Results indicate that while entrepreneurship stimulates job creation, innovation, and social inclusion, it can also generate precarious work, environmental pressures, and regional disparities. The study emphasizes the context-dependent nature of entrepreneurial impacts and provides recommendations for policymakers and stakeholders to maximize positive outcomes while mitigating negative effects. This research contributes to a better understanding of how entrepreneurship can promote sustainable and inclusive growth, aligned with the United Nations Sustainable Development Goals (SDG 8 and SDG 9). JEL code: L26, Q01, H23, O38, J24 Paper Type: Theoretical Research Keywords: Entrepreneurship; Externalities; Sustainable Development; Decent Work; Innovation; Policy; Social Inclusion Journal: International Journal of Accounting, Finance, Auditing, Management and Economics Pages: 640-651 Volume: 6 Issue: 9 Year: 2025 File-URL: https://ijafame.org/index.php/ijafame/article/view/2078 File-Format: text/html File-URL: https://ijafame.org/index.php/ijafame/article/view/2078/2095 File-Format: application/pdf Handle: RePEc:aoa:journl:v:6:y:2025:i:9:p:640-651