Status hierarchies depend primarily on the possession and use of status symbols. These are cues or characteristics that people in a society agree indicate how much status a person holds and how they should be treated. Such symbols can include the possession of valued attributes, like being conventionally beautiful or having a prestigious degree. Other status symbols include wealth and its display through conspicuous consumption. Status in face-to-face interaction can also be conveyed through certain controllable behaviors, such as assertive speech, posture, and emotional displays. Social network analysts have also shown that one's affiliations can also be a source of status. Several studies document that being popular or demonstrating dominance over peers increases a person's status. Network studies of firms also find that organizations derive their own status in market contexts from the status of their affiliates, like corporate partners and investors.