  We examine some alternative possibilities for an action functional for
$\kappa$-Minkowski noncommutative spacetime, with an approach which should be
applicable to other spacetimes with coordinate-dependent commutators of the
spacetime coordinates ($[x_\mu,x_\nu]=f_{\mu,\nu}(x)$). Early works on
$\kappa$-Minkowski focused on $\kappa$-Poincar\'e covariance and the dependence
of the action functional on the choice of Weyl map, renouncing to invariance
under cyclic permutations of the factors composing the argument of the action
functional. A recent paper (hep-th/0307149), by Dimitrijevic, Jonke, Moller,
Tsouchnika, Wess and Wohlgenannt, focused on a specific choice of Weyl map and,
setting aside the issue of $\kappa$-Poincar\'e covariance of the action
functional, introduced in implicit form a cyclicity-inducing measure. We
provide an explicit formula for (and derivation of) a choice of measure which
indeed ensures cyclicity of the action functional, and we show that the same
choice of measure is applicable to all the most used choices of Weyl map. We
find that this ``cyclicity-inducing measure'' is not covariant under
$\kappa$-Poincar\'e transformations. We also notice that the cyclicity-inducing
measure can be straightforwardly derived using a map which connects the
$\kappa$-Minkowski spacetime coordinates and the spacetime coordinates of a
``canonical'' noncommutative spacetime, with coordinate-independent
commutators.

High Energy Physics - Theory