第一章习题 It is known that the premium P that an insurer with exponential utiliy function asks for a N(1000,100^2) distributed
risk satisfies P>=1250. What can be said about his risk aversion? If the risk X has dimension 'money', then what is the dimension
of the risk aversion?
请问这里的dimension是什么意思？这道题第二部分应该怎么做啊？