In terms of vertical integration, little can be seen within the grocers given that they do not own their suppliers and so are reliant on them for products. For example, Tesco would be vertically integrated if it sold milk but also owned the farm which produced the milk. Horizontal development can be seen at both and other a level of diversification at each business, helping to reduce the risks of weakness in one business area . Tesco could be seen as the most developed, given expansion into financial services, mobile services, non-food items, clothing and entertainment and technology, providing the business with more growth opportunities but also putting more risks on the business and its brand . Analysis could also be carried out in terms of the main revenue streams for the business, and so seeing its dependence on one area.