Economic and social development : 100th International Scientific Conference on Economic and Social Development - "Economics, Management, Entrepreneurship and Innovations" : book of proceedings : Svishtov, 4-6 October, 2023 - Andrey Zahariev; Stoyan Prodanov; Dean Uckar (Economic and social development : 100th International Scientific Conference on Economic and Social Development - "Economics, Management, Entrepreneurship and Innovations" : book of proceedings : Svishtov, 4-6 October, 2023, 2023)