what is the efficient frontier in portfolio theory
Efficient frontier In modern portfolio theory, the efficient frontier (or portfolio frontier) is an investment portfolio which occupies the 'efficient' parts of the risk-return spectrum. Formally, it is the set of portfolios which satisfy the condition that no other portfolio exists with a higher expected return but with the same standard deviation of return.[1][2] The efficient frontier was first formulated by Harry Markowitz in 1952.[3]
Frontier Thesis Turner saw the land frontier was ending, since the U.S. Census of 1890 had officially stated that the American frontier had broken up. He sounded an alarming note, speculating as to what this meant for the continued dynamism of American society as the source of U.S. innovation and democratic ideals was disappearing.[citation needed]