The three decades following the Second World War saw a period of economic growth that was shared across the income distribution, but inequality in taxable income has increased substantially over the last four decades. This work seeks to quantify the scale of income gap created by rising inequality compared to a counterfactual in which growth was shared more broadly. We introduce a time-period agnostic and income-level agnostic measure of inequality that relates income growth to economic growth. This new metric can be applied over long stretches of time, applied to subgroups of interest, and easily calculated. We document the cumulative effect of four decades of income growth below the growth of per capita gross national income and estimate that aggregate income for the population below the 90th percentile over this time period would have been $2.5 trillion (67 percent) higher in 2018 had income growth since 1975 remained as equitable as it was in the first two post-War decades. From 1975 to 2018, the difference between the aggregate taxable income for those below the 90th percentile and the equitable growth counterfactual totals $47 trillion. We further explore trends in inequality by applying this metric within and across business cycles from 1975 to 2018 and also by demographic group.

This research was funded by the Fair Work Center and conducted by RAND Education and Labor.

This report is part of the RAND Corporation working paper series. RAND working papers are intended to share researchers’ latest findings and to solicit informal peer review. They have been approved for circulation by RAND but may not have been formally edited or peer reviewed.

Permission is given to duplicate this electronic document for personal use only, as long as it is unaltered and complete. Copies may not be duplicated for commercial purposes. Unauthorized posting of RAND PDFs to a non-RAND Web site is prohibited. RAND PDFs are protected under copyright law. For information on reprint and linking permissions, please visit the RAND Permissions page.

The RAND Corporation is a nonprofit institution that helps improve policy and decisionmaking through research and analysis. RAND’s publications do not necessarily reflect the opinions of its research clients and sponsors.

Read More

ترك الرد

من فضلك ادخل تعليقك
من فضلك ادخل اسمك هنا