Methods of Proving Monopolistically High Prices in the Practice of Antimonopoly Authorities

The authors conclude that antimonopoly authorities more often apply the cost method of proving monopoly high prices — the method of comparable markets is rarely used due to the difficulty of meeting the criteria. The evidence of overpricing will be confirmed by the presence of errors in the companies’ calculations, excess of the profit margin over the industry average profitability indicator, inconsistency of the price with changes in the conditions of product turnover on the market. Companies have the right to justify price changes by the presence of factors in the market related to changes in supply and demand, but such reasoning must be verifiable.