Incidence and Timing of PAC Contributions to Incumbent U.S. House Members, 1993-1994

We study how donor and recipient characteristics affect the incidence and timing of PAC contributions to incumbent members of the U.S. House of Representatives during the 1993-94 election cycle. We contribute to the campaign finance literature by modeling the timing of contributions, which is important because timing affects the perception of political actors about the competitiveness of elections and the loci of power among members of Congress, interest groups, and between members of Congress and interest groups. We estimate split population event history models to compare and contrast determinants of whether and when contributions are made across various types and sizes of PACs.