Abstract
Through this bachelor thesis it has been shown that a high degree of trade unionisation in a
country does not lead to gender equality in wage. This result was found through regression
analysis and hypothesis testing. The analyzes were performed on a dataset containing data
from two countries regarding wage, age, gender and degree of trade unionisation. Norway was
considered as the country with high degree of trade unionisation and USA as the country with
a low degree. People living in Norway, a country with a high degree of trade unionisation, earn
$1.388 more than the people in USA. Despite this, it was discovered that the difference in wage
between the sexes is larger in Norway than in USA. This result was unexpected based on what
one knows about trade unions and what they work towards. The source of error leading to this
result might be that the observations from USA have not entered their exact wage. The selection
size which has stated their wage is also different for the two countries, which may be an error
source.