<p>This paper concerns the decomposition of income risk into permanent and transitory components using repeated cross-section data on income and consumption. Our focus is on the detection of changes in the magnitudes of variances of permanent and transitory risks. A new approximation to the optimal...</p>

This paper assesses the accuracy of decomposing income risk into permanent and transitory components using income and consumption data. We develop a specific approximation to the optimal consumption growth rule and use Monte Carlo evidence to show that this approximation can provide a robust...

We develop a new approach to the decomposition of income risk within a nonstationary model of intertemporal choice. The approach allows for changes in income risk over the life-cycle and with the business cycle. It requires only repeated cross-section data and can allow for mixtures of...

Despite the widespread use of income as a measure of household welfare, there is much to recommend the use of consumption. Indeed, standard economic arguments suggest that consumption expenditure will better reflect expected lifetime resources and many economists have been unequivocal in...

This paper describes the transmission of income inequality into consumption inequality and in so doing investigates the degree of insurance to income shocks. It combines panel data on income from the PSID with consumption data from repeated CEX cross-sections and distinguishes between permanent...

This paper places the debate over using consumption or income in studies of inequality growth in a formal intertemporal setting. It highlights the importance of permanent and transitory income uncertainty in the evaluation of growth in consumption inequality. We derive conditions under which the...

This paper studies the paths from inequality in earnings to inequality in household consumption. We show that careful study of the evolution of the variances and covariances of earnings and consumption within cohorts across time can identify permanent and transitory shocks. We present an...

This paper uses panel data on household consumption and income to describe the transmission of income inequality into consumption inequality. We do this by contrasting shifts in the cross-sectional distribution of income growth with shifts in the cross-sectional distribution of consumption...

This paper places the debate over using consumption or income in studies of inequality growth in a formal intertemporal setting. It highlights the importance of permanent and transitory income uncertainty in the evaluation of growth in consumption inequality.We derive conditions under which the...