This article is this week's editor's choice of the week.

As a new feature and regular slot on the site, the editors will choose articles from the week that they consider particularly impactful or help to shape debate. This week's choice looks at what is being done to tackle the sharp decline in sell-side analyst research as new European Union rules bite. The changes affect wealth managers and client portfolios. The article is here. As always, feedback is welcome. Email tom.burroughes@wealthbriefing.com