Objective: The objective of this study is to investigate the economic analysis of law as a methodological framework to evaluate state intervention in favor of micro (ME) and small businesses (EPP), with the aim of understanding how such interventions can influence growth, the innovation and competitiveness of these companies, as well as their contribution to economic development. Theoretical Framework: In this topic, the main concepts and theories that underpin the research are presented. Public policy theories, development economics and organizational theory stand out, providing a solid basis for understanding the impact of state interventions on ME and EPP. Theoretical models and case studies illustrate a variety of approaches and results. Method: The methodology adopted for this research comprises a deductive study, using both quantitative and qualitative data. Data collection was carried out through documentary analysis, semi-structured interviews and questionnaires applied to ME and EPP representatives, in addition to statistical analyzes to evaluate indicators of growth, innovation, employment capacity and financial sustainability. Results and Discussion: The results obtained revealed that state intervention, through subsidies, advantageous tax policies, training programs and facilitating access to public purchases, can have significant impacts on ME and EPP. The analysis showed sustainable growth, innovation and job creation, although the effectiveness of interventions is intrinsically linked to factors such as appropriate policy design, effective coordination between government bodies and the ability to adapt to the specific needs of each sector and region. Research Implications: The practical and theoretical implications of this research are discussed, providing insights into how the results can be applied or influence practices in the field of economic development and public policy for ME and EPP. These implications could range from improving existing policies, formulating new state intervention strategies, and identifying areas for future research. Originality/Value: This study contributes to the literature by highlighting the importance of the economic analysis of law in the evaluation of public policies aimed at ME and EPP. The relevance and value of this research are evidenced by the innovative approach and findings that can impact the formulation and implementation of effective policies, promoting the sustainable growth and competitiveness of these companies.