Online technology journal Ars Technica has shined a spotlight on some of these PAE litigation threat campaigns.

FORBES: A Judicial Solution To Non-Practicing Patent Holders' Suits Vs. End Users?

Another story focuses on how a Luxembourg-based PAE is suing cash-strapped public transit systems over their use of vehicle-tracking systems.

FORBES: A Judicial Solution To Non-Practicing Patent Holders' Suits Vs. End Users?

Mr Pae, believed to be a tour operator of Korean descent, is the sixth American detained in North Korea since 2009.

BBC: North Korea to issue verdict on US citizen

But as markets settle, if not into equilibrium then into a more accepting perspective of a longer-term period of turmoil, expect investment activity in property to quickly pick up the pae.

FORBES: It's Only a Market