Policy errors are partly to blame for Japan's plight, but the awkward fact is that post-bubble economies tend to be prone to deflation.

ECONOMIST: Deflation

There is some truth in this, but the awkward fact is that post-bubble economies tend to be deflation-prone.

ECONOMIST: The world economy

Financial spouses tend to be analytical and more prone to taking on risk, but financial planning and investing is not an exact science.

FORBES: Don't Cut Your Spouse Out Of Financial Decisions

These tend to be less efficient and more prone to fraud.

ECONOMIST: Aid and corruption