UNIT ECONOMICS AS A TOOL FOR ASSESSING THE VIABILITY OF A STARTUP BUSINESS-MODEL Authors N. Sytnik https://orcid.org/0000-0002-7670-8860 DOI: https://doi.org/10.32702/2307-2105.2026.2.116 Downloads pdf (Українська) Published 2026-02-19 Issue No. 2 (2026): Efektyvna ekonomika Section Статті