Vox have just released an e-book entitled Secular Stagnation: Facts, Causes and Cures. The list of contributors is impressive - Larry Summers, Paul Krugman, Barry Eichengreen, Edward Glaesar, Nick Crafts, Joel Mokyr are just some of the authors. The book's summary is here. The workable definition of secular stagnation which emerges from the book is "that negative real interest rates are needed to equate saving and investment with full employment." The main concern of the authors is "that secular stagnation makes it harder to achieve full employment with low inflation and a zero lower bound on policy interest rates."
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.