A parent's promotion at work changes the child's home life. This is the:

1. The exosystem involves links between social settings that do not involve the child directly. 2. The parent's workplace is such a setting, and an event there can alter the parent's interaction with the child at home. 3. The child is not part of the workplace, so it is not the microsystem or mesosystem. _Source: Wikipedia, "Ecological systems theory" (rev 1360652000), section "The five systems"_