Maybe I'm just tired, but I came across an MCQ that I don't really understand.
Under a successful JIT system, what will likely happen to the:
Cycle time? Number of suppliers?
A) Decrease Decrease
B) Increase Increase
C) Decrease Increase
D) Increase Decrease
Answer: JIT inventory system results in more frequent, small orders and ideally eliminates inventory. A decrease in purchase order costs and/or an increase in inventory carry costs would make JIT more attractive. The number of suppliers in a successful JIT system is generally fewer. Smaller orders are being delivered and ideally eliminate the financial burden of carrying inventory.
I understand the cycle time, but can somebody explain why a JIT inventory system would result in a decrease in suppliers? I had assumed that, with smaller more frequent orders, MORE suppliers would be needed because there is less of a safety cushion for timing, so if one or more suppliers are out of stock, they would need additional suppliers on standby.