Table 2.

Variable definition and description.

Variable definitions	Variable description
y 1	Bank's ending income
C 0	Dealer's own funds
r	Bank loan interest rate
U	Supplier sales price
C	Supplier production cost
V	Unit residual value of products purchased by suppliers (v ≦ u)
P	Dealer sales price
Q	Dealer order quantity
D	Market demand faced by dealers
g k	The unit penalty cost of goodwill caused by the dealer's shortage
K	Fee income from services provided by banks (fixed value)
T	The sum of other related costs and risks borne by banks under the traditional supply chain
t	The sum of other related costs and risks borne by banks under supply chain finance (t < T)