Mr Krugman, who pioneered formal economic analysis of what causes currency crises, points out that Asia's banks and finance companies operated with implicit government guarantees.

ECONOMIST: Disaster has spawned a new theory of financial crises

More in-depth research is needed, he says, to enable better analysis and understanding of the causes, means and impacts of attacks on education.

UNESCO: Education Under Attack: UNESCO launches new report

An American historian at Oxford University, Mr Johnson offers a brilliant analysis of the war and its causes written in simple, clear prose.

ECONOMIST: Sudan

Further, the analysis of housing and its role in the economy gets what causes economies to grow exactly backward.

FORBES: Political Economy

Econometric analysis indicates that the effects of political uncertainty may be overstated, and that the weak economic situation is one of the causes, and not the consequence, of political gridlock, according to Goldman.

FORBES: 80 CEOs To Obama And Romney: Spending Cuts And Tax Hikes Unavoidable To Fix Deficit