A NECESSARY AND SUFFICIENT CONDITION FOR SIZE CONTROLLABILITY OF HETEROSKEDASTICITY ROBUST TEST STATISTICS
Abstract
We revisit size controllability results in Pötscher and Preinerstorfer (2025, Econometric Theory 41, 249–301) concerning heteroskedasticity robust test statistics in regression models. For the special, but important, case of testing a single restriction (e.g., a zero restriction on a single coefficient), we provide a necessary and sufficient condition for size controllability, whereas the condition in Pötscher and Preinerstorfer (2025, Econometric Theory 41, 249–301) is, in general, only sufficient (even in the case of testing a single restriction).
Fields of Study & Subjects
Advanced Statistical Methods and Models
Statistical Methods and Inference
Advanced Statistical Process Monitoring
Publication details
- Journal / source
- Econometric Theory
- Publisher
- Cambridge University Press (CUP)
- Pages
- 1–22
- Publication date
- 3 September 2026
- Language
- EN