Air pollution and the mystery of high household savings in China.

Despite consumption being a key measure of residential welfare, the relationship of the residential savings rates, an inverse proxy for household consumption, with air pollution is unclear. This study empirically examines the impact of air pollution on household savings rates, and the underlying mechanism. The results reveal that worsening air pollution significantly increases household savings rates; this finding holds under alternative variable specifications and employing instrumental variables to address endogeneity issues. The mechanism analysis demonstrates that air pollution enhances household savings rates through health risks. Heterogeneity analysis indicates that in developed areas with more comprehensive public medical service systems, the positive effect of air pollution on household savings rates weakens in second-tier cities and above as well as in high-income areas. Furthermore, improvements in commercial insurance coverage mitigates the positive effect of air pollution on household savings rates. Overall, this study explains the high savings phenomenon among Chinese households from an environmental perspective. The Chinese government should encourage the use of renewable energy, improve air pollution control, and reduce the inhibitory effects of air pollution on residential consumption.