Home > Publications . Search All . Browse All . Country . Browse PSC Pubs . PSC Report Series

PSC In The News

RSS Feed icon

Bloomberg cites MTF data in story on CDC's anti-smoking ads for e-cigarettes

Bound says notion that foreign students are displacing U.S. students "isn't right"

Prescott says online option for access to court system can help equalize justice

Highlights

U-M ranked #1 in Sociology of Population by USN&WR's "Best Graduate Schools"

PAA 2015 Annual Meeting: Preliminary program and list of UM participants

ISR addition wins LEED Gold Certification

PSC Fall 2014 Newsletter now available

Next Brown Bag

Mon, March 23
Lundberg, State Care of the Elderly & Labor Supply of Adult Children

David Lam photo

Lorenz Curves, Inequality, and Social Welfare under Changing Population Composition

Publication Abstract

Lam, David. 1988. "Lorenz Curves, Inequality, and Social Welfare under Changing Population Composition." Journal of Policy Modeling, 10(1): 141-62.

This paper analyzes the effects of population growth and other demographic changes on the distribution of income by examining Lorenz curves and generalized Lorenz curves produced from combinations of income distributions. The paper shows that when subpopulations have equal means, a number of simple conditions govern the position of the Lorenz curve for the combined population relative to the Lorenz curves for the subpopulations. These conditions become less regular when the subpopulations have different means, and suggest that a combined distribution will almost never Lorenz-dominate an original distribution. Implications of the results for intertemporal comparisons of social welfare and inequality are discussed. The results are illustrated by comparing income distributions across generations in Brazil.

Browse | Search : All Pubs | Next