The expected utility model -- Risk aversion -- Change in risk -- The standard portfolio problem -- The equilibrium price risk -- A hyperplane separation theorem -- Log-supermodularity -- Risk aversion with background risk -- The tempering effect of background risk -- Taking multiple risks -- The dynamic investment problem -- Special topics in dynamic finance -- The demand for contingent claims -- Risk on wealth -- Consumption under certainty -- Precautionary saving and prudence -- The equilibrium price of time -- The liquidity constraint -- The saving-portfolio problem -- Disentangling risk and time -- Efficient risk sharing -- The equilibrium price of risk and time -- Searching for the representative agent -- The value of information -- Decision making and information -- Information and equilibrium.