Economic diversity is a crucial goal for countries blessed (or cursed?) with large reserves of natural resources, such as petroleum. ... One tool countries have used to fight resource dependency is special economic zones (SEZs). For example, we have helped countries like Saudi Arabia and Qatar channel state-owned oil revenues into SEZs that encourage high-tech manufacturing, ICT, clean energy industries, and other diversified sectors. In 2013 we shared some of this experience with the OECD ...