A system and method for determining a competitiveness value for set(s) of substitutable items. The method comprises determining, a relative demand value of each set from the set(s) of substitutable items based on a normalized demand value of said each set of substitutable items determined for each of a plurality of digital platforms. The method thereafter comprises identifying, a first target digital platform for each set of substitutable items, based on a demand weighted average selling price of said each received set of substitutable items for one or more of the plurality of digital platforms. Further, to determine the competitiveness value, the method comprises identifying, a second target digital platform for the set(s) of substitutable items based on the first target digital platform identified for each set of substitutable items and a relative demand value of said each set of substitutable items.
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