TELOS: Revista de Estudios Interdisciplinarios en Ciencias Sociales ISSN 1317-0570 / ISSN (e) 2343-5763 Vol. 28(2). Mayo-Agosto 2026 PORTFOLIO THEORY METRICS AS PROXIES FOR BUSINESS SUSTAINABILITY: EVIDENCE OF STRATEGIC RESILIENCE DURING THE COVID-19 CRISIS...
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TELOS: Revista de Estudios Interdisciplinarios en Ciencias Sociales ISSN 1317-0570 / ISSN (e) 2343-5763 Vol. 28(2). Mayo-Agosto 2026 PORTFOLIO THEORY METRICS AS PROXIES FOR BUSINESS SUSTAINABILITY: EVIDENCE OF STRATEGIC RESILIENCE DURING THE COVID-19 CRISIS Anibal Enrique Toscano-Hernández https://orcid.org/0000-0002-5064-4280 Rafael Escalante-Cortina https://orcid.org/0009-0005-4854-6314 Johana Fajardo-Pereira https://orcid.org/0000-0001-7963-9349 RECIBIDO: 15/07/2025 / ACEPTADO: 11/11/2026 / PUBLICADO: 18/05/2026 Cómo citar: Toscano-Hernández, A., Escalante-Cortina, R., Fajardo-Pereira, J. (2026). Portfolio theory metrics as proxies for business sustainability: evidence of strategic resilience during the COVID-19 crisis. Telos: Revista de Estudios Interdisciplinarios en Ciencias Sociales, 28(2), 231-239. www.doi.org/10.36390/telos282.01 ABSTRACT Large-scale social emergencies act as 'stress tests' that reveal the strategic resilience and real sustainability of business models.
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