“…For developing countries, as modern scientists believe, where efforts to accelerate growth are inhibited by fear of aggravating inflation, reduction of regional disparities may well be the sine qua non of a successful development policy (Jackson et al, 2019). The dominant philosophy of intervention to strengthen local socioeconomic systems, on an international scale, moves away from the traditional regional policy paradigm towards a more sophisticated and complete approach (Vlados et al, 2019). Special emphasis on the development of cities in the context of regional development is given in the articles 'Eliciting non-monetary values of formal and informal urban green spaces using public participation GIS' (Pietrzyk-Kaszy nska et al, 2017) and 'Seeing cities through big data' (Thakuriah et al, 2017).…”