Last year, the retailer$$s weekly variance of demand was $200$ units.

The variance of orders was $500,600,750,$ and $1,350$ units for the

retailers, wholesaler, distributor and manufacturer, respectively.

$($Note that the variance of orders equals the variance of demand for

that firm$$s supplier$)$

a$)$ Calculate the bullwhip measure for the retailer

b$)$ Calculate the bullwhip measure for the wholesaler

c$)$ Calculate the bullwhip measure for the distributor

d$)$ Calculate the bullwhip measure for the manufacturer

e$)$ Which firm appears to be contributing the most to the bullwhip

effect in this supply chain?

Bullwhip Effect Example