<Dd> f (x) = A ∏ i = 1 L x i λ i, x = (x 1, ⋯, x L). (\ displaystyle f (x) = A \ prod _ (i = 1) ^ (L) x_ (i) ^ (\ lambda _ (i)), \ qquad x = (x_ (1), \ cdots, x_ (L)).) </Dd> <Ul> <Li> A is an efficiency parameter </Li> <Li> L is the total number of goods </Li> <Li> x,..., x are the (non-negative) quantities of good consumed, produced, etc . </Li> <Li> λ i (\ displaystyle \ lambda _ (i)) is an elasticity parameter for good i </Li> </Ul> <Li> A is an efficiency parameter </Li> <Li> L is the total number of goods </Li>

Cobb douglas production function increasing returns to scale