On the stability of network relations under stress

This paper addresses possible sources of instability in network relations. Four distinct sources of observed low auto-correlation (unreliability of measurement, inherent instability, systemic change (from endogenous sources), and external change (from non-system sources)) are discussed and a preliminary mathematical model is developed. Illustrations are provided from current family research and suggestions are made for sorting out possible sources of instability. Even without a complete endogenous model we demonstrate differential impacts of the distinct sources of variability.