2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/4312We show point processes generated in different ways and having different structure, presenting very similar power-law two--point correlation functions at small scales and quite different shapes at large scales.2 pages, 3 figures, to be published in the proceedings of Statistical Challenges in Modern Astronomy III E. D. Feigelson & G. J. Babu (eds.), Springer-VerlagAstrophysicstext