10b5 algorithmic collusion amazon antitrust banks cartel benchmark manipulation big pharma big tech antitrust bitcoin CAT class certification collusion Competition Appeals Tribunal Competition law competition policy COVID19 cryptocurrency damages damages estimate economic crisis event studies excess fees fake active funds financial cartel Financial litigation fraud gender gender data gap gender inclusive competition policy generic drugs gold price manipulation inflated drug prices interest rate manipulation ISDAFix LIBOR LIBOR manipulation market definition mastercard mutual funds price fixing price manipulation securities fraud swap market tether UCITS