Authors
Alina Popa
dragomir.alina.alexei@gmail.com
The Bucharest University of Economic Studies, Bucharest, Romania
dragomir.alina.alexei@gmail.com
© 2021 Alina Popa, published by Grupul de Econometrie Aplicata
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.