Government Expropriation Increases Economic Growth and Racial Inequality: Evidence from Eminent Domain

Is it justified for states to appropriate private property rights? If so, should governments expropriate or regulate?We test three conventional views: insecure property rights cause underinvestment, moral hazard cause overinvestment, or public use cause economic growth.We embed these mechanisms in a model and measure them using the random assignment of U.S. federal court judges setting geographicallylocal precedent. For a half-century, racial minority Democrats were more likely to strike down government appropriations while Republican former federal prosecutors were more likely to uphold them. We find that pro-government physical takings precedent stimulated subsequent takings, expropriation of larger parcels, highway construction, and growth in construction, transportation, and government sectors as well as agriculture, retail, and financial sectors, overall economic growth, and property values. However, racial minorities were increasingly displaced, unemployed, and living in public housing, and the service sector declined. Pro-government regulatory takings precedent also spurred economic growth and property values, but did not increase displacement or racial inequality

How Do Rights Revolutions Occur? Free Speech and the First Amendment

Does law shape values? We test a model of law and norms using an area of law where economic incentives are arguably not the prime drivers of social change. From 1958–2008, Democratic judges were more likely than Republicans to favor progressive free speech standards. Using the random assignment of U.S. federal court judges setting geographically-local precedent, we estimate that progressive free speech standards liberalized sexual attitudes and behaviors and increased both crime rates and the spread of sexually transmitted diseases. We then randomly allocated data entry workers to enter newsarticles of court decisions. Progressive decisions liberalized sexual attitudes and shifted norm perceptions for data entry subjects, but not self-reported behavior. These results present evidence of law’s expressive power – with fundamental implications for decision making in social and political settings and for the empirical predictions of theoretical models in these domains

Government Expropriation Increases Economic Growth and Racial Inequality: Evidence from Eminent Domain

Is it justified for states to appropriate private property rights? If so, should governments expropriate or regulate?We test three conventional views: insecure property rights cause underinvestment, moral hazard cause overinvestment, or public use cause economic growth.We embed these mechanisms in a model and measure them using the random assignment of U.S. federal court judges setting geographicallylocal precedent. For a half-century, racial minority Democrats were more likely to strike down government appropriations while Republican former federal prosecutors were more likely to uphold them. We find that pro-government physical takings precedent stimulated subsequent takings, expropriation of larger parcels, highway construction, and growth in construction, transportation, and government sectors as well as agriculture, retail, and financial sectors, overall economic growth, and property values. However, racial minorities were increasingly displaced, unemployed, and living in public housing, and the service sector declined. Pro-government regulatory takings precedent also spurred economic growth and property values, but did not increase displacement or racial inequality

How Do Rights Revolutions Occur? Free Speech and the First Amendment

Does law shape values? We test a model of law and norms using an area of law where economic incentives are arguably not the prime drivers of social change. From 1958–2008, Democratic judges were more likely than Republicans to favor progressive free speech standards. Using the random assignment of U.S. federal court judges setting geographically-local precedent, we estimate that progressive free speech standards liberalized sexual attitudes and behaviors and increased both crime rates and the spread of sexually transmitted diseases. We then randomly allocated data entry workers to enter newsarticles of court decisions. Progressive decisions liberalized sexual attitudes and shifted norm perceptions for data entry subjects, but not self-reported behavior. These results present evidence of law’s expressive power – with fundamental implications for decision making in social and political settings and for the empirical predictions of theoretical models in these domains

An integrated information retrieval and document management system

This paper describes the requirements and prototype development for an intelligent document management and information retrieval system that will be capable of handling millions of pages of text or other data. Technologies for scanning, Optical Character Recognition (OCR), magneto-optical storage, and multiplatform retrieval using a Standard Query Language (SQL) will be discussed. The semantic ambiguity inherent in the English language is somewhat compensated-for through the use of coefficients or weighting factors for partial synonyms. Such coefficients are used both for defining structured query trees for routine queries and for establishing long-term interest profiles that can be used on a regular basis to alert individual users to the presence of relevant documents that may have just arrived from an external source, such as a news wire service. Although this attempt at evidential reasoning is limited in comparison with the latest developments in AI Expert Systems technology, it has the advantage of being commercially available

Judicial Compliance in District Courts

Public enforcement of law relies on the use of public agents, such as judges, to follow the law. Are judges motivated only by strategic interests and ideology, as many models posit, rather than a duty to follow the law? We use the random assignment of U.S. Federal judges setting geographically-local precedent to document the causal impact of court decisions in a hierarchical legal system. We examine lower court cases filed before and resolved after higher court decisions and find that lower courts are 29-37% points more likely to rule in the manner of the higher court. The results obtain when the higher court case was decided in the same doctrinal area as the pending case and when the higher court case was decided on the merits. Reversals by the higher court have no significant effects. These results provide clean evidence that judges are motivated to follow the law and are not solely motivated by policy preferences

Mini-chromosome maintenance complexes form a filament to remodel DNA structure and topology.

Deregulation of mini-chromosome maintenance (MCM) proteins is associated with genomic instability and cancer. MCM complexes are recruited to replication origins for genome duplication. Paradoxically, MCM proteins are in excess than the number of origins and are associated with chromatin regions away from the origins during G1 and S phases. Here, we report an unusually wide left-handed filament structure for an archaeal MCM, as determined by X-ray and electron microscopy. The crystal structure reveals that an α-helix bundle formed between two neighboring subunits plays a critical role in filament formation. The filament has a remarkably strong electro-positive surface spiraling along the inner filament channel for DNA binding. We show that this MCM filament binding to DNA causes dramatic DNA topology change. This newly identified function of MCM to change DNA topology may imply a wider functional role for MCM in DNA metabolisms beyond helicase function. Finally, using yeast genetics, we show that the inter-subunit interactions, important for MCM filament formation, play a role for cell growth and survival