Since the Brundtland report in 1987, at the start of the series of United Nations Conferences on the Environment and Development, the world population has grown by more than it was in the time of Adam Smith. Oil consumption has increased by 40% and the trend is similar for other exhaustible...

Causation between time series is a most important topic in econometrics, financial engineering, biological and psychological sciences, and many other fields. A new setting is introduced for examining this rather abstract concept. The corresponding calculations, which are much easier than those...

See http://hal.inria.fr/inria-00479824/en/ for a slightly more elaborate version.