Liberalization of trade has been high on the political agenda after the Second World War. First through the international corporation in GATT and WTO and later the creation of the internal market in Western Europe and the opening up of Eastern Europe and China. The breweries respond to these changes in institution by a global M&A strategy and the following concentration of ownership among breweries increased the large breweries’ global market share dramatically. Why does this concentration in ownership take place, and was there some pay off to the breweries of this strategy? We will examine the market power hypothesis, how the increasing concentration has affected the growth of global brands and the beer prices. First, we examine where the increasing global concentration is reflected in a concentration of ownership in local markets. Next, we examine the effects of ownership concentration on the level of beer prices. Finally, we examine the effects of the global ownership on the market share of the global beer brand.