Summary of Labor Market Discrimination and Wage Differentials

## Introduction Labor market discrimination occurs when workers with equal productivity or qualifications are treated differently because of characteristics such as race, gender, or other attributes. This material breaks core models and concepts into digestible parts, gives examples, and explains implications for firms, workers, and policy. ## Key concepts and models ### Employer discrimination (Becker model) > **Definition:** Employer discrimination refers to preferences of employers that make them act as if hiring a particular group imposes an extra nonpecuniary cost. - In Becker's model each firm has a discrimination coefficient $d\ge 0$ and behaves as if the wage of the disfavored group is $w_{disfavored}(1 + d)$ even though the market wage is $w_{disfavored}$. - Firms with different $d$ sort: low-$d$ firms hire more of the disfavored group; high-$d$ firms avoid them. Example: If whites earn $w_W=16$ and blacks earn $w_B=10$ and a firm has $d=0.8$, the perceived cost of hiring a black worker is $w_B(1+0.8)=10(1.8)=18$, higher than $w_W$, so the firm may prefer whites. ### Statistical discrimination > **Definition:** Statistical discrimination occurs when employers use observable group averages (e.g., average quit rates, test-score averages) to infer an individual candidate’s productivity. - Employers use group averages when individual signals are imperfect. - This can produce differential treatment even when individuals are equally productive. Example: A firm sets wage $w=0.6T+0.4G$ where $T$ is an individual test score and $G$ is the average score for the applicant’s gender ($G_{women}=16$, $G_{men}=12$). A woman and a man both scoring $T=10$ are paid differently because of $G$. ### Customer discrimination > **Definition:** Customer discrimination arises when consumers prefer not to be served by certain worker groups; firms respond by altering hiring and wages to match customer tastes. - Effects can include segregated workforces (e.g., servers of one gender), lower wages for the discriminated group, and changes in firm output prices and profits depending on demand and competition. Example: A restaurant hires only males as servers because customers prefer male servers; cooks and dishwashers (who do not interact with customers) are mixed gender. ### Employee discrimination > **Definition:** Employee discrimination occurs when current employees prefer coworkers of certain types, creating disutility from working with particular groups. - Firms may respond by creating segregated workplaces to minimize internal conflict, which can affect hiring patterns but may not always change firm profitability if segregation is feasible. ## How discrimination affects markets - Discrimination can raise hiring costs for firms that act on prejudices, reducing profits in competitive output markets and potentially driving discriminatory firms out over time. - Statistical discrimination can persist because it uses imperfect information; better signals (e.g., better tests or credentials) reduce it. - Customer and employee discrimination can lead to occupational segregation even when productivity is equal. ## Comparative table: types of discrimination | Type | Source of bias | Mechanism | Typical firm response | |---|---:|---|---| | Employer discrimination | Employer preferences ($d$) | Treats hire as more costly via $w(1+d)$ | Hire fewer of disfavored group; higher costs | | Statistical discrimination | Information asymmetry | Uses group averages $G$ to infer individual productivity | Adjust wages by group means; may misclassify individuals | | Customer discrimination | Consumer tastes | Demand depends on server type | Segregated front-line hiring; wage effects | | Employee discrimination | Coworker preferences | Disutility from working with some groups | Segregated workplaces; sorting of jobs | ## Practical implications and applications - Hiring decisions that rely on group averages (statistical discrimination) can be improved by be