The theory of western labor marketdiscrimination 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 labor market, changing discrimination laws to include body type as a category would also help.
Fittingly for a Nobel laureate who pioneered the application of economics to areas such as discrimination, crime and the family, his answers involved market mechanisms.