Good point. Using median income as the measure, France compares closely with the US, while Spain improves but is still ~50% of the US value. The parent point

Good point. Using median income as the measure, France compares closely with the US, while Spain improves but is still ~50% of the US value. The parent point however that France and Spain are able to build railroads at 1/5 and 1/10 the rate of the US needs some reference.