Event studies have been used in political science to study the cost of regulation
(Schwert, 1981), the value of political connections (Roberts, 1990a; Fisman,
2001), the effect of political parties on defense spending (Roberts, 1990b), the
importance of rules in congressional committees (Gilligan and Krehbiel, 1988),
the reaction of different interests to trade legislation (Schnietz, 2000), how party
control in parliamentary systems affects broad-based stock indices (Herron,
2000), the value of defense contracts (Rogerson, 1989), the effect of the political
party of the US President and congressional majorities on particular industry
segments (Mattozzi, 2008; Knight, 2006; Herron et al., 1999; Den Hartog and
Monroe, 2008; Monroe, 2008; Jayachandran, 2006), and other questions
