Неисчезающий рай, налоговые гавани,

Very little has changed since the G-20 announced the end of offshore havens in 2009. A new report by the NGO ActionAid puts in question the British government's political will to combat the problem.

понятия «доходность» и «риск» всегда идут рука об руку

It is well known from the finance theory that “profit” and “risk” terms always go hand in hand, as in case of change of any parameter the other one changes as well. There are a lot of theoretical and applied researches based on the classic “Portfolio Theory” of Harry Markowitz describing a combination of risky and risk-free assets (practical financiers also widely use the William Sharpe ratio).