In what sense are financial valuation techniques such as DCF (discounted cash flows) forms of power? What does it mean to say that they are 'political technologies? How do they evolve in time? What do people working in an investment bank mean by 'value'? What happens there? Are there tensions between several ideals of value? Between 'market value' and 'fundamental value'? What is the meaning of the notion of 'crisis' in this context? How can we talk about the 'limits of financial imagination'?