  We study density currents associated with a collection of positive closed
(1,1)-currents. We prove that the density current is unique and determined by
the usual wedge product in some classical situations including the case where
the currents have bounded potentials. As an application, we compare density
currents with the non-pluripolar product and the Andersson-Wulcan product. We
also analyse some situations where the wedge product is not well-defined but
the density can be explicitly computed.
