Introduction. Sustainable management in the field of sustainable cities is extremely important because cities continue to grow at an extremely high global rate. Cities are very important to the world economy, because more than most people live in urban areas.
Aim of the study. The research conducted in this paper aims to show the impact of sustainable cities and the importance of their development in the world economy, given their many benefits – environmental, social and cultural. Authorities also need to take appropriate economic policy measures to improve all urban sectors, depending on local specificities and development needs. The methods used, both quantitative and, in particular, qualitative, highlight the role of sustainable, green and smart cities and sustainable management, taking into account the fast changes in the evolution of urban population and urban life worldwide.