This paper is dedicated to Structural changee in food industry and consequences for the scale economies in the laat twenty years. Merging in the food industry has been at least at an early tage,the need to achieve better operational efficency by acquiring with horizontal and vertical links the economies of scale. Higher costs due to investiments in more expensive and sophistlcated technologies of food processing, conservation and trasporta, as the hystorical experience demonstrate, lowered by acquiring the control of largar food markets. Mergers were dlrected to control the market with diversification of the product lines and using the brand strategies to achieve the control of distribution processes. Operational efficency is the target of the most recent forms of conglomerate acquisitions in food industry, as well as the exploitation of the synergic effect achieved with professional management and eoncentration of market knowledge in different functional areas of production and food marketing.