In his home city of Stockholm, Krikortz also shows the
results of his survey as different coloured lights on the
side of a large building in the city. For example, red means
the people of Stockholm are very happy, green is OK and
purple means many people are sad. ‘A lot of people look
at the building every day and see how “we” are,’ Krikortz
says. The coloured lights are also useful if you feel like
visiting the city. For example, if the lights are red, you
know the local