%0 Journal Article %T Narrative Momentum & Survival Index (NMSI-100): development of an innovative methodology for assessing the narrative sustainability of memcoins based on socio-financial analysis %A Stefanova, N.A. %A Korolev, A.A. %A Haritonov, E.A. %K memcoins, cryptoassets, narrative economy, sustainability index, behavioral finance, digital culture, social capital, attention economy, Dogecoin, blockchain, DeFi, tokenization, virality, sociology of finance %J JOURNAL OF MONETARY ECONOMICS AND MANAGEMENT %D 2026 %N 0 %P 16 %I ITBO University