Why the In-Sample Prediction Approach Fails as a Reliable Method for Assessing Classwide Harm
This article provides an overview of the approach and explains that it is unreliable because it fails two fundamental tests of reliable econometric methods.
Record High Median Securities Class Action Settlement Amount Amid Slower Settlement Activity in 2025
Elevated median settlement amount partially driven by larger settlements in Securities Act of 1933-only cases.
Securities Class Action Settlements—2025 Review and Analysis
The median settlement amount in securities class actions reached a nearly three-decade high of $17.3 million in 2025.
Interactive: Securities Class Action Settlements—2025 Review and Analysis
The median settlement amount in securities class actions reached a nearly three-decade high, while the total number of settlements declined.
Surfacing the Hidden Assumptions of the In-Sample Prediction Method
While several courts have accepted this method to date, this article argues that this method is not reliable.
Why This Popular Class Certification Approach Doesn’t Measure Up
The article explains why the “in-sample prediction approach” is unreliable.
Interactive: Securities Class Action Settlements—2024 Review and Analysis
The number of securities class action settlements increased slightly in 2024 while the size of those settlements declined.
Number of Securities Class Action Settlements Rises Slightly as Median Settlement Amount Declines from 2023 13-Year High
Drop in settlement size attributable to lower plaintiff-style damages, among other factors.
Securities Class Action Settlements—2024 Review and Analysis
The number of securities class action settlements increased slightly in 2024 while the size of those settlements declined.
Number of Securities Class Action Settlements Falls as Median Settlement Amount Reaches Highest Level Since 2010
Total assets of issuer defendants are the highest among post–Reform Act settlements.
The Cambridge Handbook of Marketing and the Law
Cornerstone Research experts and staff contributed chapters on valuation of personal data, brand value, search engine advertising, and marketing analysis.
How AI and Machine Learning Are Impacting the Litigation Landscape
Mike DeCesaris and Sachin Sancheti detail how expert witnesses are incorporating artificial intelligence and machine learning into their testimonies.
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