Do sleep disruptions promote social fragmentation?
John Holbein1, Charles Crabtree2
1University of Virginia, Charlottesville, VA, USA, john.holbein@gmail.com.
Summary
Daylight Saving Time (DST) shifts do not significantly alter political polarization or discriminatory beliefs. This study found minimal causal impact of sleep disruption on citizens
Area of Science:
- Social Psychology
- Political Science
- Sleep Research
Background:
- Sleep disruptions are theorized to influence political and social beliefs.
- Previous research suggests a correlation between sleep patterns and social fragmentation.
Purpose of the Study:
- To investigate the causal effect of short-term sleep disruption on political views, polarization, and discriminatory beliefs.
- To examine whether exogenous sleep changes, like Daylight Saving Time (DST), impact societal attitudes.
Main Methods:
- Utilized daily survey data from the UCLA Nationscape Survey (2019-2021) with approximately 460,000 participants.
- Employed a regression discontinuity in time design around DST transitions, supplemented by event study models.
- Analyzed the impact of DST-induced sleep changes on political polarization and discriminatory attitudes.
Main Results:
- Found little to no statistically significant causal effect of DST-induced sleep disruption on citizens' levels of political polarization.
- Observed no significant impact on discriminatory attitudes, with results precise enough to rule out small effects.
- Findings were robust across various specification checks and consistent across different subgroups.
Conclusions:
- Short-term, exogenous sleep disruptions from DST do not appear to causally influence political polarization or discriminatory beliefs.
- Despite theoretical expectations, the study indicates sleep changes may not be a primary driver of shifts in these specific social and political attitudes.
- Adds empirical evidence to the limited research on the social and political consequences of sleep disruptions.
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