The original concept "complementarities" was first introduced by Edgeworth [12] in which he defined ac- tivities as complements, if doing (more of) any one of them increases the returns to doing (more of) the others.
By drawing on lattice theory and supermodularity.
Milgrom and Roberts 110.11 I proposed that some organizational activities and practices are mutually, complementary and so tend to he adopted together.
with each enhancing the contribution of the other.
Therefore. the impact of a system of complementary practices will be greater than the sum of its parts be- cause of the synergistic effects of bundling practices together.