Estimates of Wage Discrimination Against Workers with Sensory Disabilities, with Controls for Job Demands

We provide the first-ever estimates of wage discrimination against workers with sensory (hearing, speech, vision) disabilities. Workers with sensory disabilities have lower probabilities of employment and lower wages, on average, than nondisabled workers. Their poor labor market outcomes are explained, at least in part, by the negative productivity effects of sensory limitations in jobs that require good communication skills, but disability-related discrimination may also be a contributing factor. To separate productivity vs. discrimination effects, we decompose the wage differential between workers with and without sensory disabilities into an ‘explained’ part attributed to differences in productivity-related characteristics, and an ‘unexplained’ part attributed to discrimination. The decomposition is based on human capital wage equations with controls for job-specific demands related to sensory abilities, and interactions between job demands and sensory limitations. The interactions are interpreted as measures of the extent to which a worker’s sensory limitations affect important job functions. The results indicate approximately 1/3 (1/10) of the disability-related wage differential for men (women) is attributed to discrimination. The estimates are quite different from estimates of discrimination against workers with physical disabilities obtained by the same methods, underscoring the importance of accounting for heterogeneity of the disabled population in discrimination studies.Job demand ; Sensory disability ; Wage discrimination

New Estimates of Disability-Related Wage Discrimination with Controls for Job Demands

Using data from 2004 SIPP, matched to job demands from O*Net, we provide new estimates of disability-related wage discrimination. We apply state-of-the-art econometric methods to wage models which include job demands and interactions between demands and functional limitations. The interaction terms are interpreted as measures of how well disabled workers ?match? to jobs which minimize the effects of functional limitations. The results suggest traditional discrimination models underestimate potential effects of disability-related discrimination by penalizing workers for limitations which may not affect their job performance. The bias is greater for men, who generally appear to find better matches than do women.Job demand; Disability; Wage Discrimination

Estimates of Wage Discrimination Against Workers with Sensory Disabilities, with Controls for Job Demands

We provide the first-ever estimates of wage discrimination against workers with sensory (hearing, speech, vision) disabilities. Workers with sensory disabilities have lower probabilities of employment and lower wages, on average, than nondisabled workers. Their poor labor market outcomes are explained, at least in part, by the negative productivity effects of sensory limitations in jobs that require good communication skills, but disabilityrelated discrimination may also be a contributing factor. To separate productivity vs. discrimination effects, we decompose the wage differential between workers with and without sensory disabilities into an ?explained? part attributed to differences in productivity-related characteristics, and an ?unexplained? part attributed to discrimination. The decomposition is based on human capital wage equations with controls for job-specific demands related to sensory abilities, and interactions between job demands and sensory limitations. The interactions are interpreted as measures of the extent to which a worker?s sensory limitations affect important job functions. The results indicate approximately 1/3 (1/10) of the disability-related wage differential for men (women) is attributed to discrimination. The estimates are quite different from estimates of discrimination against workers with physical disabilities obtained by the same methods, underscoring the importance of accounting for heterogeneity of the disabled population in discrimination studies.Job demand; Sensory disability; Wage discrimination

A Note on Job Mobility Among Workers with Disabilities

This article uses data from the 1990 and 1993 panels of the Survey of Income and Program Participation to analyze relationships between disability status and job mobility. We identify individuals who experienced voluntary or involuntary job separations over a 20-month period and examine the effect of disability status on rates of job change and wage growth following a job change. The results show that disabled workers are more likely to experience involuntary job changes than are nondisabled workers, but there is little difference in the wage effects of job changes by disability status

Estimates of Wage Discrimination Against Workers with Sensory Disabilities, with Controls for Job Demands

We provide the first-ever estimates of wage discrimination against workers with sensory (hearing, speech, vision) disabilities. Workers with sensory disabilities have lower probabilities of employment and lower wages, on average, than nondisabled workers. Their poor labor market outcomes are explained, at least in part, by the negative productivity effects of sensory limitations in jobs that require good communication skills, but disability-related discrimination may also be a contributing factor. To separate productivity vs. discrimination effects, we decompose the wage differential between workers with and without sensory disabilities into an ‘explained’ part attributed to differences in productivity-related characteristics, and an ‘unexplained’ part attributed to discrimination. The decomposition is based on human capital wage equations with controls for job-specific demands related to sensory abilities, and interactions between job demands and sensory limitations. The interactions are interpreted as measures of the extent to which a worker’s sensory limitations affect important job functions. The results indicate approximately 1/3 (1/10) of the disability-related wage differential for men (women) is attributed to discrimination. The estimates are quite different from estimates of discrimination against workers with physical disabilities obtained by the same methods, underscoring the importance of accounting for heterogeneity of the disabled population in discrimination studies

Estimates of Wage Discrimination Against Workers with Sensory Disabilities, with Controls for Job Demands

We provide the first-ever estimates of wage discrimination against workers with sensory (hearing, speech, vision) disabilities. Workers with sensory disabilities have lower probabilities of employment and lower wages, on average, than nondisabled workers. Their poor labor market outcomes are explained, at least in part, by the negative productivity effects of sensory limitations in jobs that require good communication skills, but disability-related discrimination may also be a contributing factor. To separate productivity vs. discrimination effects, we decompose the wage differential between workers with and without sensory disabilities into an ‘explained’ part attributed to differences in productivity-related characteristics, and an ‘unexplained’ part attributed to discrimination. The decomposition is based on human capital wage equations with controls for job-specific demands related to sensory abilities, and interactions between job demands and sensory limitations. The interactions are interpreted as measures of the extent to which a worker’s sensory limitations affect important job functions. The results indicate approximately 1/3 (1/10) of the disability-related wage differential for men (women) is attributed to discrimination. The estimates are quite different from estimates of discrimination against workers with physical disabilities obtained by the same methods, underscoring the importance of accounting for heterogeneity of the disabled population in discrimination studies

Vitamin Deficiency Studies : 1. The Relation of Vitamin Deficiency to Muscle Fatigue in Rats

When the physiological performances of vitamin deficient rats are analyzed in conjunction with growth curves and other data, certain relationships are apparent. Fatigue curves produced by animals lacking vitamin B show progressive diminution in amplitude and endurance as the length of time on diet increases. These curves also show progressive loss of tonicity and an irregularity of contraction that seem very characteristic. Animals lacking vitamin A show similar curves which in amplitude and duration are roughly inversely proportional to the interval upon the diet but the decrease in tonicity is not so apparent. At the time the animals were used, they had been on their respective diets for periods varying from three to ten weeks. Just what mechanisms are affected by vitamin deficiency still remains to be learned but it would seem that upon direct stimulation the muscles certainly are involved. It is evident also that upon indirect stimulation the nervous system is involved. Changing from the indirect to direct stimulation on the same muscle shows that deficiency of both vitamines alters the normal functioning of the neuro-muscular junction