This part I found particularly interesting: (if true)

"War had been extraordinarily profitable for the German economy. By 1948 - despite six years of conflict, Allied bombing and post-war reparations payments - the capital stock of assets such as equipment and buildings was larger than in 1936, thanks mainly to the armaments boom."

I had always thought it obvious that war was a disaster for the german economy. Many german cities were burnt to the ground. I wonder what the source is on this.