**Author details**

Ionela Munteanu Florea<sup>1</sup> \*, Marioara Mirea<sup>2</sup> and Cosmin Susu<sup>2</sup>

1 Bucharest University of Economics Studies, Bucharest, Romania

2 Ovidius University of Constanta, Romania

\*Address all correspondence to: consultant.munteanu@gmail.com

© 2020 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
