Social security system old age insurance systems are devices for the sharing of income risks of elderly people with others. Risks can be shared intergenerationally (with the young of the same country), intragenerationally (with other elderly of the same country), or internationally (with...

In his best-selling Irrational Exuberance, Robert Shiller cautioned that society's obsession with the stock market was fueling the volatility that has since made a roller coaster of the financial system. Less noted was Shiller's admonition that our infatuation with the stock market distracts us...