SMEs sector plays a vital role in modern economies. Therefore, the interest in its functoning among economists is in fact quite natural. This artcle is a part of a current research on regional factors contributng to the development of enterprises in this category. The frst secton examines earlier studies in this feld conducted globally and in Poland. According to them, many elements enable the SME’s development. It is not surprisingly that the specifed set of pro-growth factors does not exists.
Next secton describes the results of the author’s own studies in the felds. These studies relate to regional factors contributng to the efciency growth of micro, small and medium-sized enterprises in Poland. Data used in the study was collected from GUS and EUROSTAT and encompassed 16 provinces for the years 2003-2008. The model prepared included 11 independent variables on labor force, social mobility, living standard and R&D policy. The authors would have gladly considered more than 11 explanatory variable, but the inaccessibility of such data made it impossible. In the next step, using GRETL sofware, equatons of regression were defned. On this basis it was concluded that the most important factors contributng to efciency growth of SMEs are the amount of spending on R&D and the level of wages.
Keywords: small and medium-sized enterprises; factors of regional development; regions in Poland, business efciency; entrepreneurship.