Abstract
Numerous studies have attempted to identify how transport investments affect the overall economy. The results of these studies vary considerably. This variation has been explained by factors such as differences in estimation methods as well as differences among countries and sectors. This paper considers another explanation: low statistical power. By revisiting a previous meta-analysis, this paper shows that accounting for statistical power substantially reduces the estimate. Accounting for statistical power also reduces the relevance of estimation methods as well as country and sectoral differences. These results indicate that a larger data set than typically available is required to overcome the issue of low power. The implication of this is that the existing and, perhaps, future studies using macro data are of limited use to policymakers.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
