[1] Univ Beira Interior, Management Dept, NECE Res Unit Business Sci, ISCAP Porto Polytech, Covilha, Portugal
[2] Univ Beira Interior, CEOSPP Ctr Social & Org Studies, Covilha, Portugal
[3] Univ Beira Interior, Fac Human & Social Sci, Covilha, Portugal
[4] Univ Beira Interior, Dept Management & Econ, Covilha, Portugal
[5] Univ Beira Interior, Fac Social & Human Sci, Dept Management & Econ, Covilha, Portugal
[6] Univ Beira Interior UBI, Res Ctr Business Sci, NECE, Covilha, Portugal