Karavias, Yiannis; Tzavalis, Elias; Zhang, Haotian - In: Econometrics : open access journal 10 (2022) 1, pp. 1-11
Missing data or missing values are a common phenomenon in applied panel data research and of great interest for panel … data unit root testing. The standard approach in the literature is to balance the panel by removing units and/or trimming a … common time period for all units. However, this approach can be costly in terms of lost information. Instead, existing panel …