Human Resources Management Concepts: Implementation in Small BusinessMarek Matejun, Piotr SitkiewiczDepartment of Management, Faculty of Organization and Management, Lodz University of Technology Abstract: TThe scientific achievements of the management sciences discipline propose a number of management concepts and methods, which if implemented can induce a number of benefits for the modern companies. One of these categories are human resources management concepts, whose importance refers to the personal function, as one of the key elements of the management systems of the modern organizations, including those of the SME sector companies. Taking this into account, the aim of the article is to identify the range and measure benefits and threats of the implementation of selected human resources management concepts in small business. In order to achieve it, a research survey was conducted among 356 micro, small and medium sized companies from the European Union. 3 scientific hypotheses were proposed, and the verification of the research model has been done using the multi linear regression analysis. The results indicate that the scope of the HRM concepts implementation in the researched entities depend most of all from the level of formalism and integration on the functional HRM strategy, and of the level of controlled resources. Increase of the scope of the HRM concepts implementation, allows at the same time to achieve a number of opportunities, characteristic for ideas of the HRM in small business. Keywords: methods and concepts of management, human resources management, small business.