In order to comprehend the ontological construction below, please refer to the respective posts for all notions in italic.
The market share reveals only a part of the total market, and it is defined by the supply and demand for specific commodities. A definite market structure connects all suppliers and buyers by the means of goods traded. Such groupings are possible only in terms of the supply of and the demand for particular goods and their marketing. The total market presents all commodities as substitutes, resembling the realm of perfect competition. The specific market segment reveals the commodities as complementary goods, resembling the monopolistic competition. So a market share is defined by commodity’s economy of scale, economy of scope, and economy of span.
Historical Backdrop
• PIERO SRAFFA The Laws of Return under Competitive Conditions: series of distinct markets.