Table 1.

Description of Related Symbols.

Symbol	Description
Decision variables
$q_n,p_n$	Sales quantity and price of new products
$q_r,p_r$	Sales quantity and price of remanufactured products
$d$	Donation quantity of remanufactured products
Parameter
$c$	Production cost of new products
$c_r=k{y}^2$	Total variable cost of $y$ units of remanufactured products
$f$	Fixed capital cost for remanufacturing
$\alpha$	Consumer perception discount towards remanufactured products
$b$	Brand reputation
$\mathsf{\Phi }$	Social impact coefficient for the donations of remanufactured products
$\xi$	Unit environmental impact of non-recycled products
$E$	Environmental impact of non-recycled products
$G$	Government subsidies
$\mathsf{\Pi }$	OEM profits
$CS$	Consumer surplus
$e$	Unit environmental cost of non-recycled products
$\omega$	Total environmental cost of non-recycled products
$SW$	Social welfare