Gresham College provides outstanding educational talks and videos for the public free of charge. There are over 2,500 videos available on our website. Your support will help us to encourage people's love of learning for many years to come.
The Efficient Market Hypothesis argues that stock markets are rational – they take into account all relevant information, and incorporate it in an unbiased way. This talk will present evidence that stock prices are instead driven by human psychology.
New approaches to volcanic hazard assessment and risk management are emerging as more information is required to respond to volcanic emergencies – illustrated by approaches to some recent eruptions, such as the Soufriere Hills Volcano, Montserrat.