OECD's 22 donor countries, measured in the same purchasing-power parity dollars.

ECONOMIST: The UN's Millennium Development Goals

Eventually these questions lead to parity (and often parody) because they are the same exact questions their competitors are asking.

FORBES: Why Growth Is So Hard And What To Do About It

Net Enrollment Ratio in primary education had increased from 58% in 1999 to 76% by 2010 and the Gender parity index from 0.85 to 0.93 over the same period of time.

UNESCO: EDUCATION

It, in fact, has a very fat tail, and in 2008, that portfolio would have lost 37%, where a risk-parity portfolio would have lost less than half that amount at the same targeted level of volatility.

FORBES: A Better Way to Benchmark Risk Allocations

In May, Rep. Robert Andrews, a New Jersey Democrat, introduced the Prosthetic and Custom Orthotic Parity Act, which would require insurance companies to cover prosthetics at the same rate they do surgery.

CNN: Double amputee loses legs, finds a cause