Assertion: execution | /r/CapableOf | introduce the principle
Facets:
Source sentences:
text: In Europe there has been an attempt to define "best execution" within the Markets in Financial Instruments Directive (MiFID), which introduces the principle that when carrying out transactions on their clients' behalf "investment firms [shall] take all sufficient steps to obtain, when executing orders, the best possible result for their clients taking into account price, costs, speed, likelihood of execution and settlement, size, nature or any other consideration relevant to the execution of the order.