We proxy for board members' opinions and values using directors' ancestral origins and show that diversity has costs and benefits, which lead to high performance volatility. Consistent with the idea that diverse groups experiment more, firms with ancestrally diverse boards have more numerous and...

Divergent views exist about whether boards must tradeoff advising for monitoring performance when utilizing outside versus inside directors. We suggest a dichotomous tradeoff focus underestimates outside directors' impact on board performance. We find outside director tenure positively...