Customer Discrimination and Employment Outcomes for Minority Workers

In this paper we investigate the effects of consumer discrimination on the employment and earnings of minorities, particularly blacks. We do so using data from a new survey of employers in four large metropolitan areas in the United States. Our results show that the racial composition of an establishment’s customers has sizable effects on the race of who gets hired, particularly in jobs that involve direct contact with customers. Although we find evidence of customer discrimination in both predominantly white and black establishments, the net effect of such discrimination appears to be some reduction in overall labor demand and wages for blacks. Evidence is also presented which suggests that the role of customer discrimination may be growing more important over time.

Spatial factors and the employment of blacks at the firm level

Minorities - Employment ; Income distribution

Job Change and Job Stability among Less-Skilled Young Workers

In this paper we review evidence from previous studies of job and employment instability among less-educated young workers, and we provide new evidence from the National Longitudinal Survey of Youth. We find that early employment instability contributes somewhat to the low levels of employment observed among high school dropouts, especially females. Important determinants of job stability include the cognitive skills of the workers themselves (as measured by math test scores), current or previous experience and job tenure, and a variety of job characteristics including starting wages, occupation, and industry. Job instability among female dropouts seems to be strongly related to fertility history and marital status. Some implications for policy, especially welfare reform, are discussed as well.

Spatial factors and the employment of blacks at the firm level

In this paper we use data from a new survey of over 3,000 employers in four major metropolitan areas to investigate the determinants of black employment and wages at the firm level. We focus specifically on two factors that are likely to influence the spatial distribution of black employment: the proximity of firms to the residential locations of various racial groups and to public transit. We also consider the effects on black employment of other factors, such as employers' skill needs and some likely determinants of their preferences across groups. Our main finding is that employers' proximity to black residences and to public transit increases the likelihood that they will hire black employees. This is true even when we include detailed controls for the skills needed by employers and also for the race of customers and of those responsible for hiring, which independently affect the levels of black employment at firms. Proximity to public transit and especially to black residences accounts for major portions of the higher black employment rates at central-city than suburban firms. The residential effects are relatively strong for employers who recruit through informal methods and weak for those who use newspapers, thus suggesting that information may play a role in the distance effects. We also find some evidence that employers' proximity to black residential populations results in lower wages for workers.

Gibbs free-energy difference between the glass and crystalline phases of a Ni-Zr alloy

The heats of eutectic melting and devitrification, and the specific heats of the crystalline, glass, and liquid phases have been measured for a Ni24Zr76 alloy. The data are used to calculate the Gibbs free-energy difference, DeltaGAC, between the real glass and the crystal on an assumption that the liquid-glass transition is second order. The result shows that DeltaGAC continuously increases as the temperature decreases in contrast to the ideal glass case where DeltaGAC is assumed to be independent of temperature

OGO-3 observations of ELF noise in the magnetosphere - Part 1 - Spatial extent and frequency of occurrence

OGO-3 spectrum analyzer measurements of magnetic noise in magnetospher

Within Cities and Suburbs: Racial Residential Concentration and the Spatial Distribution of Employment Opportunities across Submetropolitan Areas

In this paper, we examine and compare the spatial distributions of jobs and people across submetropolitan areas using data on firms from the Multi-City Study of Urban Inequality and data on people from the U.S. Bureau of the Census. The results indicate that less-educated people and those on public assistance mostly reside in areas with high minority populations. Low-skill jobs are quite scarce in these areas, while the availability of such jobs relative to less-educated people in heavily white suburban areas is high. Large fractions of the low-skill jobs in these metropolitan areas are not accessible by public transit. Furthermore, there is significant variation within both central cities and suburbs in the ethnic composition of residents and in the availability of low-skill jobs. The ability of various minority groups to gain employment in each area depends heavily on the ethnic composition of the particular area.

Measurements of heavy ion beam losses from collimation

The collimation efficiency for Pb ion beams in the LHC is predicted to be lower than requirements. Nuclear fragmentation and electromagnetic dissociation in the primary collimators create fragments with a wide range of Z/A ratios, which are not intercepted by the secondary collimators but lost where the dispersion has grown sufficiently large. In this article we present measurements and simulations of loss patterns generated by a prototype LHC collimator in the CERN SPS. Measurements were performed at two different energies and angles of the collimator. We also compare with proton loss maps and find a qualitative difference between Pb ions and protons, with the maximum loss rate observed at different places in the ring. This behavior was predicted by simulations and provides a valuable benchmark of our understanding of ion beam losses caused by collimation.Comment: 12 pages, 20 figure

The Magic Number Problem for Subregular Language Families

We investigate the magic number problem, that is, the question whether there exists a minimal n-state nondeterministic finite automaton (NFA) whose equivalent minimal deterministic finite automaton (DFA) has alpha states, for all n and alpha satisfying n less or equal to alpha less or equal to exp(2,n). A number alpha not satisfying this condition is called a magic number (for n). It was shown in [11] that no magic numbers exist for general regular languages, while in [5] trivial and non-trivial magic numbers for unary regular languages were identified. We obtain similar results for automata accepting subregular languages like, for example, combinational languages, star-free, prefix-, suffix-, and infix-closed languages, and prefix-, suffix-, and infix-free languages, showing that there are only trivial magic numbers, when they exist. For finite languages we obtain some partial results showing that certain numbers are non-magic.Comment: In Proceedings DCFS 2010, arXiv:1008.127

Computer services for business schools: a procedure for analysis and application to the Sloan School of Management,

Massachusetts Institute of Technology, Alfred P. Sloan School of Management. Thesis. 1974. M.S.MICROFICHE COPY ALSO AVAILABLE IN DEWEY LIBRARY.Bibliography: leaves 83-84.by Doron C. Holzer and Loretta R. Patzelt.M.S