Modeling of Multitask Principal-Agent Based on Accounts Receivable

Table 1

Parameter symbols and meanings.

Parameter	Meanings
G	The core enterprise manufacturer
g	The SME supplier
D	A material’s supply project
I	The needed money for the supplier to prepare for the materials
B	The supplier’s own money
L	The external financing need
r	The financing interest rate
	The supplier’s effort level in supply
	The supplier’s effort level in service
x	The results of supplier effort
	The random vector subjected to the normal distribution
	The variance of the random vector
A	The output coefficient
	The contributing coefficient the material supply on the manufacturer
	The contributing coefficient the service level on the manufacturer
	The risk aversion coefficient
y	The real money income
h	The mean of the real money income
	The standard deviation of the real money income
	The fixed payment of manufacturer
	The supplier incentive coefficient