NBD-Dirichlet Model of Brand Choice

Think of NBD-Dirichlet Model of Brand Choice as a school atlas: simplified, slightly wrong, and the reason you found your way at all.

Remember that every model lies a little. The question is never 'is it true?' but 'is it useful here?' Used with that humility, this model earns its shelf space.

The idea is simple, and like most simple ideas it is easy to nod at and hard to use. The nod is free. The use costs attention, every day, in small change.

The village panchayat and the housing society meeting are the same animal in different clothes: five people deciding, fifty people complaining, and everyone leaving wiser than the minutes suggest.

Society is a long conversation; the only question is whether you are listening or merely waiting to speak. Print it on a card if you like. Better: print it on a habit.