Domestic terrorism, incumbency, and legislative vote shares

A small number of studies have examined the effect terrorism has on political ideology and vote choice cross-nationally. However, scholars yet to understand how terrorist attack type influences vote choice based on the political ideology of incumbent governments. Thus, we examine the effect domestic and transnational terrorist attacks have on vote choice in legislative elections while accounting for the ideology of the incumbent government. In examining 56 democracies from 1975 – 2014 from various regions and levels of development, we find that domestic attacks, and not transnational, significantly effect both right and left party votes shares when the incumbent party in government is of a similar ideology. We attribute these results to the perception of instability that accompanies domestic attacks and the effects it has on voters’ evaluations of political parties. These findings have important implications for understanding how terrorism influences electoral behavior.