Kostnadseffektiv minskning av koldioxidutsläpp från tunga fordon i Sverige

Sammanfattning: When the emissions from the diesel trucks today accounts for a large part of the total emissions from the road traffic, the trend with a more extensive use of diesel trucks for transportation will therefore lead to increasing carbondioxide emissions to the atmosphere. Because of the fact that technical progress in the form of optimized engines and shifts in the means of transport sometimes result in even greater emission levels, other solutions to this problem must be studied to decrease the emissions of carbondioxide from the diesel trucks. The purpose of the thesis is to show how a decrease of the carbondioxide emissions from diesel trucks in Sweden can be achieved in a costeffective way by the use of a carbondioxide tax and a differentiated vehicle tax. The method used in order to fullfill the purpose of the thesis is studies of literature, mainly of public government reports. Literature of enviromental economics will be used to show the need of a tax and how to determine the dynamic effective carbondioxide tax in steady-state. It will then been showed how the tax combination of a carbondioxide tax and a differentiated vehicle tax, both in the short and long run, contribute to decreased carbondioxide emissions from diesel trucks in a costeffective way. This is not the case for the carbondioxide tax and vehicle tax that are in use for diesel trucks in Sweden today.