About the Authors

José Manuel Ortega-Egea

jmortega@ual.es

Affiliation Department of Economics and Business, University of Almería (ceiA3), Almería, Spain

Nieves García-de-Frutos

Affiliation Department of Economics and Business, University of Almería (ceiA3), Almería, Spain

Raquel Antolín-López

Affiliation Department of Economics and Business, University of Almería (ceiA3), Almería, Spain

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JMO NGF RAL. Performed the experiments: JMO NGF RAL. Analyzed the data: JMO NGF RAL. Contributed reagents/materials/analysis tools: JMO NGF RAL. Wrote the paper: JMO NGF RAL.