The sustainable business model (SBM) concept emerged as one of the most compelling research topics in contemporary management. The multifariousness of discussion areas and problems related to creating, implementing, and modifying SMBs offers great at is ultimate, which means that it is sustainable in all three dimensions, i.e., in the technological, social, and environmental context, by applying innovations corresponding to these categories (technological, social, and organizational). Particular attention was paid to the discussion on SBM archetypes and a framework describing SBM key features that served as points of reference for further investigations. The paper comprises two major parts; the introduction of the sustainable business model concept is followed by research results. The theoretical part includes a presentation of the most important SBM definitions discussed in the managerial literature. In the second empirical part, based on secondary sources, an illustrative case study of an ultimately sustainable business model (USBM) was developed and discussed.

Aim/purpose-The aim of the paper is to explore the evolution of business models of health resort enterprises. The sector is perceived in this research as a case of a particular, traditional sector based on natural (here: balneological) resources which has been undergoing significant changes. In addition to the analysis of the evolution of business models, the purpose was to investigate the role of different categories of resources, e.g. infrastructure or relational competences, in substituting natural resources in the creation of business models. Design/methodology/approach-The exploration was based on a quantitative approach and survey research. The data gathered through the questionnaire were used in cluster analysis which adopted the agglomeration (hierarchical) method, i.e. grouping of features by Ward's method. Findings-Business models in the health resort sector in Poland have evolved and the major change incorporated their shift from business models focused on an idiosyncratic category of resources, i.e. natural, balneological resources, to business models based on other categories, like human resources, e.g. employees' competences, tangible resources like modern infrastructure or financial resources (for example contracts). The application of a clustering method facilitated tracing the evolution of business models from various perspectives, such as the importance of interorganiational cooperation, different value propositions, and focus on various customer segments. The evolution of business models of Polish health resort enterprises 63 Research implications/limitations-The research implication for management studies is the recognition and presentation of the categories (archetypes) of business models of health resort enterprises in Poland as well as the characteristics of the evolution of business models within the scope of their components. The primary practical implication from a managerial perspective is to provide the basis for evaluation of opportunities and threats related to the adopted business model when comparing to the alternatives currently chosen by competitors. The major limitation of the research is the small sample size. Originality/value/contribution-The paper presents the results of the original research conducted among health resort enterprises in Poland. The paper identifies and characterises various categories (archetypes) of business models of the health resort enterprises in Poland as well as the evolution of the building blocks of implemented business models. The study contributes to the discussion on the usefulness of resource-based-view (RBV) as a theoretical perspective of business model research. The results are consistent with RBV as well as adhere to competence approach and relational view. From a practical perspective, they offer a recipe (formula) for managers of health resort enterprises interested in introducing changes into their business models.

The aim of the paper is to explore the diversity of Polish health resort's business models. The primary question was to reflect on the impact that geographical location has on the business models. The first part of the article presents concisely different methodological approaches to conducting the research on business models classifications. The second part of the paper includes the presentation of findings, gathered from survey, conducted among Polish health resort enterprises. The variety of business model's components configuration is either introduced in this section.

The creation of sustainable value is one of the compelling issues in contemporary scientific research in management. Due to the diverse actors involved and the numerous research contexts, both in management theory and business practice, value creation paradigms are still primarily studied in economic, social, and environmental dimensions. However, the ecological context appears to be an essential but controversial area of analysis, raising questions about the role of the natural environment and its resources in modern businesses and communities. The article aims to present the complexity of the issues of cooperation, creation, and co-creation of sustainable value in Polish health resorts. The article is divided into two major sections: the theoretical part of the article contains an overview of the main concepts and problems related to the creation and co-creation of sustainable value. In the empirical part, case studies present two examples of small Polish health resorts where sustainable value co-creation takes place.

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