Calculate the return on the ENI share and on the Italian index over 13 months until January 2011. To help you, you have a record of the share price and of the general index. What is the total risk of the ENI share? What is the β coefficient of ENI? What portion of the total risk of the ENI share is explained by market risk? (see attached image).

Trade will take place: a. if the maximum that a consumer is willing and able to pay is less than the minimum price the producer is willing and able to accept for a good. b. if the maximum that a consumer is willing and able to pay is greater than the minimum price the producer is willing and able to accept for a good. c. only if the maximum that a consumer is willing and able to pay is equal to the minimum price the producer is willing and able to accept for a good. d. none of the above.