Model uncertainty in measuring abnormal accruals in Vietnam

Abstract

This study examines model uncertainty in measuring abnormal accruals of Vietnamese listed firms. Instead of treating the Jones model as the default choice, the study combines multiple accrual models using Bayesian methods and predictive weighting. In the posterior measurement space, the original Jones model does not dominate, while adjusted variants receive negligible weights. Asymmetric and cash-flow-based models, particularly those with firm-specific intercepts, receive stronger support. When predictive intervals are considered, the number of observations flagged as abnormal decreases significantly. The study recommends incorporating model uncertainty in earnings management research in Vietnam.
Keywords
abnormal accruals earnings management model uncertainty Bayesian methods Vietnam

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