A primer on government funds charged with investing currency reserves for profit.

Religion’s place in the Iranian political system has long been debated among scholars, but a president who blurs the line has refocused attention on the topic

Though shifts in demand and reduced production by some major producers have influenced oil prices, investor behavior is also increasing market volatility.

Greenhouse gas trading is now a multibillion-dollar international business and is expected to continue to grow, despite uncertainty about a post-2012 international climate regime.

Amid a growing insurgency and escalating economic troubles in Pakistan, U.S. President Barack Obama said the United States must "help Pakistan help Pakistanis." Experts say strengthening the country’…