Developments In Equal Pay Litigation Book - 2025 Update

Table of Contents 4
Equal Pay Legislation 7
A. The Federal Equal Pay Act and Title VII 7
B. State Equal Pay Legislation 7
C. Pay Transparency and Other State and Local Initiatives 8
Recent Case Law Developments 12
A. Proving The Prima Facie Case 12
1. Establishing A Wage Disparity 13
2. Showing That Work Is “Equal” Or “Substantially Similar” 24
B. Significant Class And Collective Action Decisions 37
1. Recent Cases Involving Collective Action Certification 37
2. Recent Cases Involving Class Action Certification 44
C. Disproving Discrimination: Employers’ Affirmative Defenses 49
1. Proving A Factor Other Than Sex 49
2. Additional State Law Requirements to Establish the Factor Other Than Sex Defense 55
3. Challenging The Factor Other Than Sex: Salary History and Beyond 59
4. Other Affirmative Defenses 65
5. Pretext 69
D. Other Important Substantive Decisions Impacting Equal Pay Litigation 71
1. Retaliation Claims 71
2. Proving An “Establishment” 76
3. Identifying The “Employer” Under The EPA 78
4. Statute Of Limitations and Willfulness Issues 81
5. Maintaining Privilege of Internal Investigations and Proactive Pay Studies 82
Developments In EEOC Enforcement Of Equal Pay Act Claims 87
A. Recent Examples of EEOC Enforcement Activity 87
B. EEOC Litigation of Title VII Equal Pay Claims 90

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