There are few skilled workers, the scale of production is small and wage costs are roughly ten times that of India, which dominates the world market and where 900, 000 people work as basic polishers.

ECONOMIST: The diamond cartel

These jobs require highly-skilled, high-paid workers and are more durable than production jobs.

FORBES: Coming To America

Royal Dutch Shell also reported declines in their fourth quarter profits, and blamed lighter European demand, lower natural gas production (Exxon) along with a high demand for equipment and skilled workers and the difficulties involved in tapping reserves in politically unstable regions (Shell).

FORBES: BP Loses Steam