That has made it easier for the Qualifications and Curriculum Authority, a quango that tries to keep standards constant, to compare different papers.

ECONOMIST: Are competing exam boards driving down standards?

Volume there has remained constant--while electronic volume has exploded--making the exchange a perfect place to compare open-cry and electronic platforms.

FORBES: That Other Exchange

Volume there has remained constant--while electronic volume has exploded--making the exchange a perfect place to compare open cry and electronic platforms.

FORBES: That Other Exchange