As illustrated in Figure 19.9, racial prejudices on the part of employers produce discrimination against black workers, who receive lower wages and have fewer employment opportunities than white workers. Discrimination can result from prejudices among other groups in the economy as well.
One source of discriminatory prejudices is other workers. Suppose, for example, that white workers prefer not to work with black workers and require a wage premium for doing so. Such preferences would, in effect, raise the cost to the firm of hiring black workers. Firms would respond by demanding fewer of them, and wages for black workers would fall.
Another source of discrimination against black workers could come from customers. If the buyers of a firm’s product prefer not to deal with black employees, the firm might respond by demanding fewer of them. In effect, prejudice on the part of consumers would lower the revenue that firms can generate from the output of black workers.
Whether discriminatory preferences exist among employers, employees, or consumers, the impact on the group discriminated against will be the same. Fewer members of that group will be employed, and their wages will be lower than the wages of other workers whose skills and experience are otherwise similar.
Race and sex are not the only characteristics that affect hiring and wages. Some studies have found that people who are short, overweight, or physically unattractive also suffer from discrimination, and charges of discrimination have been voiced by disabled people and by homosexuals. Whenever discrimination occurs, it implies that employers, workers, or customers have discriminatory preferences. For the effects of such preferences to be felt in the marketplace, they must be widely shared.
There are, however, market pressures that can serve to lessen discrimination. For example, if some employers hold discriminatory preferences but others do not, it will be profit enhancing for those who do not to hire workers from the group being discriminated against. Because workers from this group are less expensive to hire, costs for non-discriminating firms will be lower. If the market is at least somewhat competitive, firms who continue to discriminate may be driven out of business.
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