摘要：The late medieval agrarian crisis has been discussed in Swedish research for a long time. While there is general agreement that rents declined from the mid-fourteenth century and onwards, there are different opinions with regard to the chronology of this process. There is also disagreement regarding the extent to which the Church was affected by this crisis. In order to achieve a more reliable view of the crisis, we need to gather the available information on land prices and rents in a more systematic way. This article presents a long time series based on about 1,300 purchases of real estate property in the Lake Mälar provinces and about 2,100 quotations relating to the size and composition of the rent during the period of 1274–1540. In these provinces, farm sizes were often set in a number of öresland. These öresland were not fixed areas but rather a measure of the production capacity of the farm. As a rough average, one öresland corresponded to about three hectares of land, out of which half was sown each year.
