Farming and food distribution on a small scale has its advantages and disadvantages. The disadvantages has its roots in the current pressure in South America, where the increasing popularity of supermarkets among consumers, and thus the ability of these chains to dictate what farmers grow and get paid, which then squeezes small-scale producers. On the other hand, there are advantages, such as the fact that small-scale farms tend to be less reliant on outside sources of energy. By means of crop rotation and rotational grazing, these farms benefit from the natural pest controls. In addition, operators who have a number of goods to produce, have more diverse sources of income, not to mention having a form of insurance in the face of changing climate patterns and fluctuating markets.