We analyse active space debris removal efforts from a strategic, game-theoretical perspective. Space debris is non-manoeuvrable, human-made objects orbiting Earth, which pose a significant threat to operational spacecraft. Active debris removal missions have been considered and investigated by...

The Routh-Hurwitz stability condition is disentangled for choice variables that are strategic substitutes or strategic complements. This yields distinct stability conditions that are not necessarily symmetric. Two examples illustrate this result.