The "Crazy Days" at Stockmann (sales event in a department store called Stockmann) are approaching. For just under a week during the Stockmann 'Crazy Days' you get quality goods, cheaper than normal. People rush around determined, zigzagging around the shops with their yellow bags dangling. The price elasticity of products and services always tends to be negative. In other words: falling prices raise demand. In economics, however, we also find situations where demand increases, when the price g