What do I buy how and why?

What does shopping do to our self-esteem, and when do we become addicted to shopping?

Author Nunu Kaller questions the psychology of the buying drive.

The Viennese used to reward herself with a shirt from H&M after a stressful day in the office.

Today she criticizes the group's “dirty core business”.

In 2012, the now 39-year-old decided to take a radical step: she went on a shopping diet and didn't buy any new clothes for a year.

An interview about the pitfalls of good consumption.

WORLD:

Ms. Kaller, has shopping served its purpose as a great experience or reward?