College of Tourism;
Sichuan Agricultural University;
Chengdu 611830;
China;
College of Management;
Sichuan Agricultural University;
Chengdu 611830;
China;
School of Business;
İstanbul Medipol University;
Kavacık Mah.Ekinciler Cad.No:19;
Kavacık Kavşağı;
34810 Beykoz;
Istanbul;
Turkey;
Crowdfunding; Project financing; Clean energy investments; New service development; PERT; Group decision making; Pythagorean fuzzy sets; DEMATEL; TOPSIS; VIKOR;