INTRODUCTIONIn spatial economics, it is an important issue how to attract migration flows to a given local community, for instance, a municipality and how to retain the population in that municipality; see e.g. Tiebout (1956Tiebout ( , 1961, Tullock (1971), Chun (1996. Slovenia has no institutionalized intermediate level of government between the state and municipalities. That is why municipalities represent a basic cell for realizing regional development with certain development objectives at state level. The achievement of these objectives is strongly linked to the financing of municipalities, their economic power and stability. The Republic of Slovenia highlights the welfare of each individual as the central objective of social development, whereby changes in economy and society are focused on raising the welfare of current and future generations (the Spatial Development Strategy of Slovenia 2014-2020 (draft), the Ministry of Economy, 2013 and the RS Development Report, the Institute of Macroeconomic Analysis and Development, 2015). Special attention has been given to the projection of demographic trends.In this paper, we discuss migration flows between municipalities in the Republic of Slovenia. Permanent migration (hereinafter: migration) is a spatial phenomenon, whereby individuals or groups of people change residence (Bole, 2004) between the analysed spatial units (added by authors). Migrations have long-term consequences on the transport policy, infrastructure and other spatial structures. Migrations are strongly linked with the real estate market. Migrations are an important and complex phenomenon and have a significant impact on demographic, economic and wider social development (Bevc, 2000). By applying theoretical and empirical studies of migrations flows, we can explain important consequences of migration flows. Empirical research significantly contributes to a better understanding of these demographic dynamics serving to improve political decision-making connected to activities which affect the physical environment and the management of facilities within this environment. Furthermore, they facilitate discussions about the taxation policy parameters as a potential regulator of city growth. Using various mechanisms of development policies, municipalities or regions can influence the development of their territory and consequently the future demographic dynamics. The term "urban development" refers to changes in settlement conditions and the changing structure of cities in response to economic and social conditions (Drozg, 2008). Spatial development stems from the implementation of several public policies; their impact can be direct (e.g. the construction of transport infrastructure) and indirect (e.g. tax policy measures) (Miklavčič et al., 2016). Municipalities are obligated to manage their revenues in such a way as to offer public services and take care of spatial development (Pichler Milanović et al., 2008). Municipalities should create conditions that will ensure a high-quality living environmen...