The Eastern and Southern districts in Sierra Leone, most notably the Kono and Kenema districts, are rich in alluvial diamonds, and more importantly, are easily accessible by anyone with a shovel, sieve, and transport. Since their discovery in the early 1930s, diamonds have been critical in financing the continuing pattern of corruption and personal aggrandizement at the expense of needed public services, institutions, and infrastructure. The phenomenon whereby countries with an abundance of natural resources tend to nonetheless be characterized by lower levels of economic development is known as the "resource curse".