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Moneycontrol Pro Weekender | The Bullwhip Effect 

Incremental demand is resulting in larger fluctuations at the wholesale, manufacturing and raw materials supply levels

November 13, 2021 / 10:07 IST
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Dear Reader,

With US consumer inflation at 6.2 percent for October -- a 31-year high -- and even Japan, where people had forgotten what inflation was, seeing producer prices increase at the fastest pace since 1981, inflation is obviously on top of the mind for investors. Could those Titans who hold up the markets -- central banks -- be wrong about their faith in inflation being transitory?

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The Bank for International Settlements (BIS), aka the central bankers’ bank, should know. In a recent Bulletin, it says one reason prices are rising is because of the ‘Bullwhip Effect’. This occurs when relatively small surges in demand have progressively larger fluctuations at the wholesale, manufacturing and raw materials supply levels. It is so named because it mimics what happens when a person cracks a whip — a flick of the wrist results in the amplitude of the movement increasing as it travels along the whip, with the end moving the most.

Attempts by retailers, wholesalers and producers to hoard inventory to cushion themselves against the supply crunch lead to the bullwhip effect. The BIS Bulletin says, “Anticipation of product shortages and precautionary hoarding at different stages of supply chain have aggravated initial shortages (the “bullwhip effect”), leading to further incentives to build buffers. These behavioural changes have the potential to lead to feedback effects that exacerbate bottlenecks. In this respect, there are parallels between supply chain disruptions and the liquidity stresses in financial markets.”