The ongoing campus protests in the US are being clamped down by heavy-handed police tactics - see article in HuffPost here (thanks to Barry Quinn for the hat tip). This is a worrying sign as freedom of speech and the right to protest are fundamental rights in any democracy.
My colleague and former PhD student Gareth Campbell has created a website about the British Railway Mania - click here . This episode has been described by the Economist as probably the greatest bubble in human history. Gareth's website provides background on the Mania and posits some explanations for the 'bubble'. In his explanation of why the bubble happened, Gareth places a lot of emphasis on investor myopia regarding future dividends and uncalled capital. His study of investors during the episode does not support the view that this episode was fuelled by naive and irrational investors.