If fewer and fewer people are going to be in work in Germany in future, it has to be ensured that those who do work are more productive. That, too, will help to boost potential growth. This makes it especially important that the work force has received the best possible education and training.
There, the model is essentially the reasoning by which the regulation was set. Even in a case where the test is independent of the regulatory end, risks exist, as we saw in the Volkswagen case, where the company is said to have designed its cars to pass the required emissions test but not to actually achieve the regulatory goal of reduced emissions.