Thomson Reuters: the power of data

London-based Stephan Flagel, Thomson Reuters’ head of indices, likes to compare the impact of data on the development of financial markets to that big data has had on the world of medicine. “Today, the availability of data allows evidence-based decision-making,” he explains. “We see it in areas such as medicine, which increasingly employs data, analytics and statistics to prove which treatments work and to what degree. It is the same now in finance, where the availability to gathe…