"[2] A contemporary implementation of the Portfolio includes 40% short-term bonds, and 15% international equity evenly divided into Europe, Pacific, and emerging markets funds.
[3] Bernstein's third book, The Birth of Plenty, is a history of the world's standard of living; it proposes four conditions that have historically been necessary for it to rise.
In 2009 his fifth book, The Investor's Manifesto: Preparing for Prosperity, Armageddon, and Everything in Between, was published, which continues the theme of asset allocation in a more accessible way.
In 2014 his sixth book, Rational Expectations: Asset Allocation for Investing Adults, was published.
Bernstein holds a PhD in chemistry and an MD; he practiced neurology until retiring from the field.