Algorithm for assessing the business activity of the region in the decision-making system at the regional management levelNatalya Vetrova, Gennadii Shtofer, Anastasia Gaysarova, Andrey Andronov and Olga RyvkinaE3S Web Conf., 449 (2023) 03014DOI: https://doi.org/10.1051/e3sconf/202344903014