%0 Journal Article %T METHODS OF ASSESSING THE SCALE OF THE SHADOW ECONOMY, THEIR ESSENCE AND FEATURES %A Demchenko, S.K. %A Schmitt, M.A. %A Nizhelskaya, E.A. %A Arutyunyan, K.M. %K shadow economy, groups of scaling methods, informal employment %J Trade, service, food industry %D 2022 %N 2 %P 9 %I Siberian Federal University