$1.$ Describe the central input for determining the equity risk premium, CAPM. What does this input signify and what is its relevance?

$2.$ What is the earliest expression of the equity risk premium $($hint: John Stuart Mill, $1848)?$

$3.$ What significant contribution did Mehra and Prescott $(1985)$ make, in terms of CAPM and the Markowitz model?

$4.$ What is one of the major issues that has been found with statistical estimation of the equity risk premium?

$5.$ What are the key takeaways $($conclusions$)$ of Goetzmann and Ibbotson$$s $(2005)$ paper?