Video: What do population pyramids tell you about the future?

This video by Kim Preshoff for TED-Ed gives you a brief introduction to the power of population pyramids: They display demographical data in a proper way, so that you can understand what happened in the past and also make a prediction on how a society will be set up in the future. That’s important information for social scientists as well as policy makers, as the distribution of age groups in a country has direct effects on e.g. the pension system.

Source: Get more information from TED-Ed

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