Sarah Butler

Vice President of NERA’s Survey and Statistical Sampling Practice at
NERA Economic Consulting

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Ms. Butler is Vice President in NERA’s Survey and Statistical Sampling Practice. She is a testifying expert in survey research, sampling, market research, and statistical analysis and has applied her expertise in a wide range of projects and litigation cases. In the area of intellectual property, she has designed and testified on surveys used to establish likelihood of confusion, secondary meaning, and issues related to fame.  Ms. Butler has designed surveys to establish the incremental demand created by a patented feature. In mass torts and class actions, she has conducted work to evaluate consumer understandings of advertising or willingness to pay for allegedly defective goods. She has extensive testimonial experience in matters of false advertising. In the antitrust area, she has designed and evaluated surveys offered to estimate market shares and as evidence of cross shopping behaviors. Ms. Butler has also conducted surveys and statistical analyses in labor cases. She has also reviewed secondary market research, with a focus on evaluating its reliability as evidence in antitrust analyses. In antitrust, class actions, as well as the areas of water and the environment, Ms. Butler has designed and evaluated complex willingness to pay and hypothetical choice surveys. Ms. Butler is currently interested in how survey based methods may be used to provide evidence in data breach cases. 

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