On the other hand, resource and waste processing firms do not internalize in their supply plans the consequences of the reflux of material to the waste pile" (Pittel et al., Each major actor type has its own decision node in the circular economy where his decision can break the circular flow of the recycling process in figure 6. The producers' decision node contains the choice between virgin and recycled plastics as input to production and then to sell goods to consumers (or industry).