The dynamics of the Brazilian income

This paper aims to measure the degree of income mobility in Brazil in the 1987-2005 period. To achieve that, we consider the axiomatic mobility approach and the dynamic tool suggested by Aebi et al. (1999). The transition probability matrix calculations and the mobility index indicate that Brazil has low intragenerational income mobility, suggesting that Brazilian social structure is relatively rigid.Income mobility; Transition probability matrix; Mobility indices

Estimating income mobility using census data: a probabilistic approach

This paper aims to measure the degree of income mobility in Brazil in the period from 1987 to 2005. To achieve that, it was considered the axiomatic mobility approach and the dynamic tool suggested by Aebi, Neusser and Steiner (1999). The transition probability matrix calculations and its mobility index indicate that Brazil presents low intergenerational income mobility, suggesting that Brazilian social structure is relatively rigid.Income mobility Transition probability matrix Mobility indices.

Classical versus Quantum Structure of the Scattering Probability Matrix. Chaotic wave-guides

The purely classical counterpart of the Scattering Probability Matrix (SPM) $\mid S_{n,m}\mid^2$ of the quantum scattering matrix $S$ is defined for 2D quantum waveguides for an arbitrary number of propagating modes $M$. We compare the quantum and classical structures of $\mid S_{n,m}\mid^2$ for a waveguide with generic Hamiltonian chaos. It is shown that even for a moderate number of channels, knowledge of the classical structure of the SPM allows us to predict the global structure of the quantum one and, hence, understand important quantum transport properties of waveguides in terms of purely classical dynamics. It is also shown that the SPM, being an intensity measure, can give additional dynamical information to that obtained by the Poincar\`{e} maps.Comment: 9 pages, 9 figure

Structure and diffusion time scales of disordered clusters

The eigenvalue spectra of the transition probability matrix for random walks traversing critically disordered clusters in three different types of percolation problems show that the random walker sees a developing Euclidean signature for short time scales as the local, full-coordination constraint is iteratively applied.Comment: 5 pages, 4 figures, submitted to Physics Letters