The package IC2 implements the computation of some indices of inequality and concentration. For each index, it provides decomposition between subgroups. Plotting of Lorenz and concentration curves are also available.
Three family of inequality indices are available: extended Gini, Atkinson and Generalized Entropy. Except for GEI, two different forms of decomposition are available. Ordinary as well as generalized Lorenz curves can be drawn. Sampling weights can be used.