Dunbar’s Number 150, Perfect for Christmas Card Lists and Twitter Friends

It’s that time of year in our house when I dutifully read all of the Christmas Cards before they are dispatched for recycling. There are literally 100’s of them. “How can there be so many?”  I ask my wife, who controls everything Christmas related at home, with ruthless military precision. “There are only supposed to be 150, it’s […]

150 Swedish Tax Inspectors, The Monkeysphere and Stable Work Groups.

Now here’s an idea.  Organise your Tax Inspectors along the lines of a 150 strong monkey colony. If they spend 42% of their time ‘social grooming’ don’t worry, that’s what’s needed to maintain community cohesion and a stable workforce. This is not as strange as it seems. It’s all about the size of our brains, […]

Employee Engagement – is 150 the Magic Number, plus something else?

Is there such a thing as the ‘best’ or ‘right’ number of people in a successful organisation? Last week I was at the Cardiff University Distinguished Lecture Series where I listened to Professor Robin Dunbar explain that around 150 people is the optimum number to  maintain the informal relationships and cohesiveness that allow a community […]