Table 1_Why does scabies persist despite effective treatment? Coordination failure, Nash equilibrium, and replicator dynamics.xlsx

The empirical analysis reveals a statistically significant negative association between scabies DALYs and household washing machine coverage that is consistent across multiple yearly specifications and stable regional patterns of household washing machine coverage.</p>Discussion<p>The empirical findings should be interpreted as correlational and illustrative rather than causal, since the empirical analysis does not control for the broader socioeconomic and institutional determinants of scabies burden.

Nevertheless, the results are consistent with the theoretical framework and highlight the potential role of infrastructure-based hygiene interventions, in combination with mass drug administration and health education, in aligning individual incentives with socially optimal outcomes. Sustainable scabies control requires integrated economic, epidemiological, and behavioral strategies.</p>