Replication Data for: Who represents the constituency? Online political communication by members of parliament in the German mixed-member electoral system
<|begin_of_text|><|start_header_id|>system<|end_header_id|> You are a research archivist expert in dataset metadata. Answer the question truthfully.  <|eot_id|><|start_header_id|>user<|end_header_id|> Here is the Description of a dataset. Description:'Members of parliament (MPs) are elected via two different tiers in mixed-member electoral systems – as winners of a seat in a constituency or as party candidates under proportional rules. While previous research has identified important consequences of this 'mandate divide' in parliaments, questions remain how this institutional setup affects MPs’ political behavior in other arenas. Analyzing more than one million social media posts, this paper investigates regional representation in the online communication of German MPs. The results show that MPs elected under a direct mandate refer approximately twice as often to their constituencies by using regionalized wording and geographic references than MPs elected under the proportional tier. The substantive findings provide new evidence for the benefits of mixed-member electoral systems for ' . Please return only a json list of at most 3 Keywords corresponding to the Description:.<|eot_id|><|start_header_id|>assistant<|end_header_id|> {"Answer" : ["Facebook","mandate divide","Mixed-member electoral systems","political communication","regional representation","social media","Twitter"]} <|eot_id|>
 Here is the Description of a dataset. Description:'Members of parliament (MPs) are elected via two different tiers in mixed-member electoral systems – as winners of a seat in a constituency or as party candidates under proportional rules. While previous research has identified important consequences of this 'mandate divide' in parliaments, questions remain how this institutional setup affects MPs’ political behavior in other arenas. Analyzing more than one million social media posts, this paper investigates regional representation in the online communication of German MPs. The results show that MPs elected under a direct mandate refer approximately twice as often to their constituencies by using regionalized wording and geographic references than MPs elected under the proportional tier. The substantive findings provide new evidence for the benefits of mixed-member electoral systems for ' . Please return only a json list of at most 3 Keywords corresponding to the Description:.
Members of parliament (MPs) are elected via two different tiers in mixed-member electoral systems – as winners of a seat in a constituency or as party candidates under proportional rules. While previous research has identified important consequences of this 'mandate divide' in parliaments, questions remain how this institutional setup affects MPs’ political behavior in other arenas. Analyzing more than one million social media posts, this paper investigates regional representation in the online communication of German MPs. The results show that MPs elected under a direct mandate refer approximately twice as often to their constituencies by using regionalized wording and geographic references than MPs elected under the proportional tier. The substantive findings provide new evidence for the benefits of mixed-member electoral systems for 
Facebook; mandate divide; Mixed-member electoral systems; political communication; regional representation; social media; Twitter