Resumen de The effect of multiple-office holding on the parliamentary activity of MPs in the Czech Republic

Lukáš Hájek

• This article deals with multiple-office holdings by legislators in the Czech Republic during the VI. Chamber of Deputies, 2010–2013. First, both positive and negative theoretical consequences of simultaneously holding multiple political offices are depicted. Then, a uniquely detailed database of member of parliament-periods is constructed for quantitative research. Multiple-office holding is demonstrated to be a frequent behaviour among Czech deputies. The analysis results suggest that some of the deputies’ parliamentary performances were influenced both positively and negatively. Multiple-office holders probably save time on certain activities, and focus more strongly on others. Different mandates held simultaneously by deputies affect their activity differently; local and non-executive mandates’ effects tend to be positive compared with regional and executive mandates’ effects.