Theory and Modern Applications
Table 1 The parameters description for system
Parameter | Symbolic description |
|---|---|
β | Sensitivity coefficient of consumers to the retail price of vaccines. |
p | Retail price of unit vaccine. |
w | Wholesale price of unit vaccine. |
c | Unit sale cost of vaccine. |
A | Sales saturate asymptote. |
B | Cold chain transport sensitivity. |
y | The vaccine activity inspection level. |
b | The cold chain transportation level. |