As in any research field, risk theory has its important questions, results, and paradoxes, as well as its seminal papers and key authors. Louis Eeckhoudt has been a key author in the field of risk theory. To celebrate his many contributions and continue the development of theories of decision...

As in any research field, risk theory has its important questions, results, and paradoxes, as well as its seminal papers and key authors. Louis Eeckhoudt has been a key author in the field of risk theory. To celebrate his many contributions and continue the development of theories of decision...

Risk aversion can be defined either by the negative sign of the second derivative of the utility function or by the rejection of any mean-preserving increase in risk. The more recent notions of prudence and temperance have so far been defined exclusively by the sign of the third and the fourth...