This study looked at how companies in Switzerland set their prices using data from 1993 to 2005. The researchers found that prices don't change often, with a typical price staying the same for about 4.6 quarters. Different types of businesses change prices in different ways. Price changes can be quite big, around 9.4% on average. Even when prices go up, over 40% of changes are actually decreases. Companies adjust prices when costs go up, but not before tax changes happen. Businesses in Switzerland adjust prices more often when inflation is higher.