Technically, the main contributions of occupied Europe, such as slave labor and net imports, should be included in German GDP. However, we note that German GDP growth during was lower than its three main opponents.TheMarcksPlan wrote: ↑22 Jul 2020 07:41This thread is beholden to one of the great myths of WW2: that occupied Europe contributed little to the Nazi war effort. The OP is apparently (?) under the impression that French contributions to the German war effort would have been reflected in German GDP numbers... Not true.
Some of the scholarship that corrects this myth is discussed in another Economy thread: viewtopic.php?f=66&t=245879#p2239034
The historical consensus states that occupied Europe contributed 25% of the German war effort, but looking at the data that figure even seems high.
Another thing to consider is the amount of manpower that Germany used to occupy and defend those territories. Approximately 30% of its divisions.
Considering that Germany was defeated by a much less efficient rival but with massive superiority in human resources, the inputs it acquired from occupied Europe seem clearly insignificant and of little relevance and do not compensate for the manpower spent on maintaining them.