Indroducing a different notion of stocks and sales: Previously, we thought of stock as all cars that has been build up to the year x, sales were the cars from year x. This has been revised to stock being all cars, sales being only the cars from the current year
yes, sorry for merging before I answer the question I just saw the approval. The vintages have the additional dimension of the construction year which gets summed here.
Indroducing a different notion of stocks and sales: Previously, we thought of stock as all cars that has been build up to the year x, sales were the cars from year x. This has been revised to stock being all cars, sales being only the cars from the current year