And what about the nationalizations? What about the five-year plans from the after-war? You may know that the State can be an important (sometimes exclusive actor) in the sectors of energy, transport, armament, etc. In addition, this intervention have been very useful to rebuild France and integrate it into the “Glorious 30”.
Then, reducing economy to trade is missing production. It is missing work-force. Here, the national can have a big impact (positive or negative) by employing people who would consume products and feed trade.