1. Department of Mechanics, Mathematics and Management Polytechnic University of Bari Via E. Orabona Bari4‐70125Italy
2. Institute for Innovation and Entrepreneurship Mount Royal University 4825 Mt Royal Cir SW Calgary ABT3E 6K6Canada
3. Research Institute on Sustainable Economic GrowthCNR – National Research Council of ItalyCollegio Carlo Alberto Via Real Collegio Moncalieri, Torino30‐10024Italy