Gravityblog

Meatless May case study

Nudging Capetonians to reduce their meat consumption during the month of May

The planning fallacy

The planning fallacy

(Or why you’re always late)

Gravity Ideas improving client debt management at Capitec Bank

The stakeholders

Gravity Ideas is a behavioural design consultancy based in Cape Town, South Africa, that focuses on using insights from the behavioural sciences to create or improve…

Case Study: Tax-efficient investment at Allan Gray

The Stakeholder

Allan Gray is a South African investment manager that has focused on creating financial security for their investors for over 40 years.

Social proof: Everyone else is doing it.

Accompanied by two of your friends, you find yourself standing in a gelato store. You…

Scarcity bias

A once in a lifetime read

You are sitting in a restaurant about to order your regular breakfast option, the eggs Benedict. The waiter comes over to inform you, just before you order, that there are only three croissants left. Suddenly, you feel as though you…

The endowment bias: to have and to hold

When was the last time you sold something? Would you really be willing to pay the price…

The Google effect

‘Remember me on this computer’ has become an all too common preference in today’s Information Age. Has it come to this — that…

Hindsight is not foresight

We all know that creeping feeling. The feeling that you just knew something was going to happen. It might be…