<P> In order to understand the origin of the economic well - being we must understand these three production processes . All of them produce commodities which have value and contribute to well - being of individuals . </P> <P> The satisfaction of needs originates from the use of the commodities which are produced . The need satisfaction increases when the quality - price - ratio of the commodities improves and more satisfaction is achieved at less cost . Improving the quality - price - ratio of commodities is to a producer an essential way to improve the competitiveness of products but this kind of gains distributed to customers cannot be measured with production data . Improving the competitiveness of products means often to the producer lower product prices and therefore losses in incomes which are to compensated with the growth of sales volume . </P> <P> Economic well - being also increases due to the growth of incomes that are gained from the growing and more efficient market production . Market production is the only production form which creates and distributes incomes to stakeholders . Public production and household production are financed by the incomes generated in market production . Thus market production has a double role in creating well - being, i.e. the role of producing goods and services and the role of creating income . Because of this double role market production is the "primus motor" of economic well - being and therefore here under review . </P> <P> In principle there are two main activities in an economy, production and consumption . Similarly there are two kinds of actors, producers and consumers . Well - being is made possible by efficient production and by the interaction between producers and consumers . In the interaction, consumers can be identified in two roles both of which generate well - being . Consumers can be both customers of the producers and suppliers to the producers . The customers' well - being arises from the commodities they are buying and the suppliers' well - being is related to the income they receive as compensation for the production inputs they have delivered to the producers . </P>

Which is an industry in which industry costs do not change with greater output