DR. FORNEFELD: How did it work with the weather stations in Germany? There have always been, and still are, a lot of discussions about pricing of the meteorological data from the DWD, the German meteorological government agency. The private meteorological providers complain that there is a natural monopoly, especially on the data from satellites, that affects the prices. What is the right price for satellite photos for the weather station information? Due to the inability of the DWD to resolve this pricing question, the whole effort to provide this PSI meteorological data did not succeed. When the DWD could not determine the price at which to make the data available to the private meteorological data providers, the private data providers built their own grid of weather stations. This experience led to some critical discussions about public monopolies and the power of a natural monopoly in setting prices.