[1] Univ Aveiro, DEGEIT Dept Econ Management Ind Engn & Tourism, Aveiro, Portugal
[2] INESCTEC Inst Syst & Comp Engn Technol & Sci, Porto, Portugal
[3] Univ Aveiro, GOVCOPP Res Unit Governance Competitiveness & Publ, Aveiro, Portugal
[4] Univ Beira Interior, NECE UBI Res Ctr Business Sci, Covilha, Portugal