[Retracted] Decision Optimization of Low-Carbon Dual-Channel Supply Chain of Auto Parts Based on Smart City Architecture

Table 2

Function settings.

Cost	Cost function
Purchase cost of auto parts supplier
	Transaction costs between auto parts suppliers and manufacturers	, where
Production cost of new materials used by auto parts manufacturers
	Production cost of old materials used by auto parts manufacturers
Transaction costs between auto parts manufacturers and suppliers		, where
Transaction costs of auto parts manufacturers, physical retailers, and online retailers	, where
Transaction costs of auto parts manufacturers and recyclers	, where
Storage cost of auto parts physical retailer and online retailer	,
	Transaction cost of auto parts physical retailer, online retailer, and manufacturer	, where
Transaction cost of auto parts physical retailer, online retailer, and demand market	, where
Auto parts demand function
	Auto parts demand market and retailer’s transaction cost	, where
Auto parts demand market and transaction cost of recycler	, where
Storage cost of auto parts recycler	,
	Transaction cost between auto parts recycler and demand market	, where
Transaction cost between auto parts recycler and manufacturer	, where
Conversion and reuse coefficient of recycled auto parts
Availability factor of reprocessed products of auto parts recycler