Oga, Takashi http://orcid.org/0000-0002-7597-2950
Article History
Received: 26 December 2018
Accepted: 4 February 2021
First Online: 20 February 2021
Compliance with ethical standards
:
: The authors have no conflicts of interest to declare that are relevant to the content of this article.
: The authors did not receive support from any organization for the submitted work.
: not applicable
: not applicable
: All statistical computations are executed via OxMetrics 8. Doornik, J.A. (2007), Object-Oriented Matrix Programming Using Ox, 3rd ed. London: Timberlake Consultants Press and Oxford: ExternalRef removed.