%0 Journal Article %T EVALUATION OF THE EFFECTIVENESS OF THE SMALL BUSINESS PRODUCT PORTFOL %A Bychkova, G.M. %K Accounting system, small business, product portfolio, assessment, analysis, economic and mathematical model %J Bulletin of the Angarsk State Technical University %D 2022 %N 1 %P 3 %I Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»