Constitutional Agreements without Constitutional Theories

How is constitution‐making possible, when people disagree on so many questions about what is good and what is right? The answer lies in the existence of incompletely theorized agreements–agreements on abstract formulations (freedom of speech, equality under the law) and on particular practices, amidst disagreement about the largest issues in social life. Such agreements help make constitutions and constitutional law possible, even within nations whose citizens cannot concur on the most fundamental matters. Incompletely theorized agreements thus help illuminate an enduring constitutional puzzle: how members of diverse societies can work together on terms of mutual respect amidst intense disagreements about both the right and the good.     

Poverty across the Life Cycle: Evidence from the PSID

The likelihood of experiencing poverty at some point during the adult life cycle is estimated. These probabilities are derived through a set of life tables built upon 25 waves of data from the Panel Study of Income Dynamics, and represent an alternative approach to studying poverty than prior empirical studies. Life table analyses are divided into early adulthood (ages 20–40), middle adulthood (ages 40–60),and later adulthood (ages 60–80). The findings indicate that individuals within the sample face a significant risk of poverty at some point during their adult lives, particularly during the early and later stages of adulthood. Duration tends to be relatively short (1 or 2 years), but once poverty occurs, it is likely to occur again. Results also reveal the profound life‐course effect that race, education, and gender have upon the likelihood of encountering poverty during the adult years. Several policy and research implications are discussed. © 2001 by the Association for Public Policy Analysis and Management.     

Correlation of surnames and Y-chromosome in Central-Brazil

In patrilineal societies, surnames and Y-specific haplotypes and haplogroups are expected to be correlated. This characteristic could help defining an initial pool of suspects in forensic genetics analysis. Here we evaluated this correlation in a sample of Central-Brazilian men. Surnames and Y-SNP haplogroup and Y-STR haplotype were analyzed in 55 pairs of Central-Brazilian men sharing surnames (n = 110). Seven haplogroups and thirty-two haplotypes have been observed, none correlated solely to any of the twenty-eight surnames represented here. In this sample, two men with the same surname showed a chance of 0.41 of sharing a Y-specific haplogroup. This chance is higher for surnames of intermediate frequencies, whereas rare surnames show distinct chances as zero and one. Observed results may be over-estimated due to a predominance of a specific haplogroup (P92R7 = 49%) in the sample, what makes it possible for two men with no coancestry to share this haplogroup. Considering STR, only three pairs of men shared haplotypes. The average difference between the haplotypes in each pair was 2.45 mutational steps. This relatively low correlation is due to some historical and cultural peculiarities of the country, what makes it improper for forensic purposes in Brazil.