The GroKo Effect: Does the Popularity of CDU/CSU and SPD Suffer from Grand Coalitions?
Thomas Drechsel (LSE)

Paper
Latest version here

Data
regierungen_roh.xlsx - This is the raw data I collected on federal and state governments and coalitions
wahlergebnisse_roh.xlsx - This is raw data I collected on federal and state election results
regressionsdaten.xlsx - This is the final data used to run the regressions

If you have questions or suggestions, please get in touch!
t.a.drechsel 'at' lse.ac.uk