A new dataset titled ‘Resolutions of Tripartite Commission for Socio-Economic Affairs in Poland (2001–2015). Classification of resolutions from the social dialogue’s effectiveness point of view,’ authored by Dr. Dariusz Szklarczyk from the AGH University of Krakow, has been published in the QDA. The dataset includes resolutions developed during the activities of the Tripartite Commission for Socio-Economic Affairs in Poland from 2001 to 2015, along with their categorization using the ‘associational participation scale’ (Talos & Kittel 2001). The aim of the study was to define and evaluate the effectiveness of the Tripartite Commission’s actions in the context of assessing the effectiveness of social dialogue at the national level in Poland.