Economists got it all wrong in 2008. And economics has had a hard time recovering amid the debacle over the past decade. However, it may once again be time to test basic economic theory. A perfect testing ground is being offered by IMO 2020.

IMO 2020 happens to be a gamble. Clever marketeers have approached shipowners on behalf of scrubber manufacturers with intriguing calculations.

Buy a scrubber and payback time may be less than a year, two years, or more.