welcome to bullwhip.co.uk

the source for solutions to the bullwhip problem in supply chains

my  homepage at Cardiff Business School

my Google Scholar webpage

my ResearchGate webpage


Intro Bibliography Book Shop The Bullwhip Explorer Management Games Excel Add-in The Super-ellipse Explorer Links Bullwhip Help


Welcome to bullwhip.co.uk. This is my little website devoted to the fascinating, widespread and costly supply chain problem that I spend a lot of time researching and teaching.  

So what is the bullwhip problem? Well as replenishment orders flow up a supply chain from the consumer (perhaps ourselves in the supermarket) to the supplier, the fluctuations in the order rates increases. This is an expensive supply chain property that impacts upon a companies profit (it affects inventory levels, customer service levels and capacity costs), public image, environmental impact, the quality of life of its employees, the wider community and all of human society.

Now there is much debate about whether the bullwhip problem actually exists, whether a solution exists and what precisely are the economic consequences of it. I hope this website will become a source of information on this.  

If you would like to know more about my bullwhip research, you can watch a (now very old) video of me talking about bullwhip for UKFutureTV by clicking here. Alternatively, working with Xun Wang, I have produced this research briefing that describes, in an accessible manner, how choas can be produced in supply chains.

Professor Stephen Disney, PhD



Upcoming events


Recent events


What's new in this website recently?

Couple of papers added to the biblography, upcoming events updated.


Disclaimer: If you would like to make a contribution,  if I have made an error, linked to a website I should not have, made an important omission, infringed on IPR or anything else please email me, I am trying to be careful, but mistakes do happen. Whilst  I have taken due care that the information contained herein is correct to the best of my knowledge, but I accept no responsibility for any consequences of any advice given on this website.  No responsibility is taken on the content in external websites either.