Top left: compact fluxes from the simulation compared directly to 1.1 mm SMA observations. Top right: extended fluxes from the simulation compared directly to 0.85 mm SCUBA observations. The fluxes have been rescaled to a common distance of 150 pc. For the interferometric fluxes this is just the inverse square law F ∝ d^-2. For the single-dish fluxes we follow Jørgensen et al. (2009) who, based on a density profile corresponding to a free-falling envelope (ρ ∝ r^-1.5), found F ∝ d^-1. Bottom left: flux ratios. The horizontal dashed line corresponds to the flux ratio expected for pure envelope emission (Jørgensen et al. 2009). Bottom right: disk fraction vs. flux ratio. The solid line is the fraction of systems which contains a disk in each bin. The vertical dashed line is the same as the horizontal dashed line in the lower left panel.