
The Puzzle
Many theories assume public interest in politics rises when things go wrong, yet cross-national, long-term evidence has been scarce. Yue Hu and Frederick Solt address this gap by measuring how aggregate political interest—what they call “macrointerest”—varies across countries and over time, and by asking what institutional and economic forces drive those changes.
How Hu and Solt Measure Macrointerest
The authors apply recent advances in latent-variable modelling to a comprehensive collection of survey responses to produce dynamic, comparable estimates of macrointerest for more than a hundred countries over the past four decades. This approach pools information from many surveys to recover an underlying, country-level index of public interest in politics that is comparable across space and time.
Validation and Analytical Strategy
Key Findings
Why This Matters
By delivering validated, dynamic measures of aggregate political interest, this research creates new possibilities for cross-national and longitudinal work on public engagement and democratic responsiveness. The finding that good economic conditions correlate with higher political interest reframes assumptions about when publics pay attention, with implications for scholars of public opinion, turnout, and institutional design.

| Macrointerest Across Countries was authored by Yue Hu and Frederick Solt. It was published by Cambridge in BJPS in 2025. |