The theory of western labormarketdiscrimination is summed up the reason as three points: individual prejudice, enterprise's monopoly and statistics discrimination.
西方劳动力市场歧视理论将歧视的根源归纳为三大块，即个人偏见、厂商的垄断以及统计性歧视。
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Since employers' perception of weight is what matters in the labormarket, changing discrimination laws to include body type as a category would also help.
Discrimination economics, human capital theory, screening theory and labormarket segmentation theory illustrate the difference in labor force in different aspects.