Democratic revolutions as institutional innovation diffusion: Rapid adoption and survival of democracy

Technological Forecasting and Social Change, Volume 80, Issue 8, October 2013, Pp. 1546–1556 http://dx.doi.org/10.1016/j.techfore.2013.02.002 Abstract Recent ‘democratic revolutions’ in Islamic countries

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Population growth - how great are the risks and what factors affect risk levels?

The global population has increased dramatically since the year 1900 from approximately 1,6 billion to today's 8 billion. The UN estimates that world population will reach 11 billion by the year 2100.

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