Formal and perceived leadership power in U.S. state legislatures

While there is a growing literature on the factors linked to the power held by leaders in state legislatures, the complexity of leadership power as a concept makes assessing it difficult. The author demonstrates that measures of formal leadership power derived from the written rules are uncorrelated with survey measures capturing legislators' own assessments of their leader's strength. These differences have practical importance, with each type of measure yielding different substantive findings in models predicting leadership power.