- The Experience
- The Programs
- MBA Program
- MSx Program
- PhD Program
- Executive Education
- Stanford Ignite
- Research Fellows Program
- Summer Institute for General Management
- Stanford LEAD Certificate: Corporate Innovation
- Stanford Innovation & Entrepreneurship Certificate
- Executive Program for Nonprofit Leaders
- Executive Program in Social Entrepreneurship
- Executive Program for Education Leaders
- Stanford go.to.market
- Faculty & Research
- Insights
- Alumni
- Events
You are here
Delisting Returns and their Effect on Accounting-Based Market Anomalies
Delisting Returns and their Effect on Accounting-Based Market Anomalies
Journal of Accounting and Economics.
2007, Vol. 43, Issue 2–3, Pages 341-368
We show that tests of market efficiency are sensitive to the inclusion of delisting firm-years. When included, trading strategy returns based on anomaly variables can increase (for strategies based on earnings, cash flows and the book-to-market ratio) or decrease (for a strategy based on accruals). This is due to the disproportionate number of delisting firm-years in the lowest decile of these variables. Delisting firm-years are most often excluded because the researcher does not correctly incorporate delisting returns, because delisting return data are missing or because other research design choices implicitly exclude them.