Various of EP applications are mentioned besides algorithmic trading are: external surveillance by regulators, risk management, auditing, market depth analysis and more.
R. Burns, B. Walsh, S. O’Neill, and C. O’Neill. Health Policy, 108 (2–3):
269-276(2012)http://dx.doi.org/10.1016/j.healthpol.2012.08.014 (Eurobarometer).