Explanation : The efficient frontier is the part of the minimum variance frontier which
represents the set of portfolios that will give the highest return at each
risk level.
Explanation : With the efficient frontier we are only allowed to invest in risky assets.
With the CAL this constraint is relaxed and we are also allowed to invest in
the risk-free asset.
Explanation : The use of leverage and the combination of a risk-free asset and the
optimal risky asset will dominate the efficient frontier of risky assets (the
Markowitz efficient frontier).
Explanation : The optimal risky portfolio lies at the point of tangency between the capital
allocation line and the efficient frontier of risky assets.