A practical motivation for the creation of agricultural cooperatives is related to the ability of farmers to pool production and/or resources. In many situations within agriculture, it is simply too expensive for farmers to manufacture products or undertake a service. Cooperatives provide a method for farmers to join together in an 'association', through which a group of farmers can acquire a better outcome, typically financial, than by going alone. This approach is aligned to the concept of economies of scale and can also be related as a form of economic synergy, where "two or more agents working together to produce a result not obtainable by any of the agents independently". While it may seem reasonable to conclude that larger the cooperative the better, this is not necessarily true. Cooperatives exist across a broad membership base, with some cooperatives having fewer than 20 members while others can have over 10,000.