2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/14669The closely related issues of (1) reconstructing density and velocity fields from redshift survey and distance indicator data and (2) determining cosmological parameters from such data sets are discussed. I focus on possible explanations for the discrepant values of $β\equivΩ^{0.6}/b$ resulting from analyses that employ various reconstruction methods. Although no firm conclusions are reached, possible routes towards resolution of these discrepancies are suggested by the discussion.4 pages, 1 figure, Cosmic Flows Workshop, Victoria BC, July 1999, S. Courteau, M. Strauss, and J. Willick edsAstrophysicstext