Escaping absolute poverty boosts adult cognitive abilities, study finds

A new study published in the Journal of the Asia Pacific Economy reveals that escaping absolute poverty can lead to improvements in adult cognitive abilities. The research, conducted by Yuhang He, Dian Chen, and Huawei He of Zhejiang University and the Central University of Finance and Economics, examined the impact of China's Targeted Poverty Alleviation policy, which was launched nationwide in 2015.

The study focused on adults who either lived below the national poverty line or were enrolled in the poverty alleviation program in 2014. By analyzing data from the China Family Panel Studies, the researchers controlled for various personal and regional factors, including age, marital status, household size, and local economic development.

The policy aimed to provide targeted financial credit, healthcare, and employment support to low-income households. Instead of merely examining financial changes, the researchers measured the impact on cognitive abilities, specifically crystallized intelligence (knowledge and experience) and fluid intelligence (problem-solving and working memory).

The analysis showed that adults who received poverty alleviation support experienced significant improvements in both forms of intelligence. On average, participants gained nearly five points on tests of crystallized intelligence and half a point on tests of fluid intelligence. These gains were observed across various demographic groups, but the extent varied based on personal characteristics and geographic location.

The cognitive benefits were most pronounced in western China, where poverty was historically more severe, and the policy directed more concentrated resources. The type of cognitive improvement also depended on age, gender, and educational background. Older adults and those with lower levels of education saw the greatest gains in crystallized intelligence, indicating that basic improvements in living conditions can help individuals acquire fundamental knowledge and skills.

On the other hand, individuals with higher education levels experienced larger gains in fluid intelligence, suggesting that better economic security can enable them to develop advanced problem-solving and abstract reasoning skills. The study also found that women experienced more substantial gains in crystallized intelligence compared to men, likely due to the additional caregiving responsibilities typically shouldered by women in traditional household roles.

When poverty alleviation policies improve basic living conditions and health, women may benefit disproportionately, as the policy may alleviate domestic burdens placed on them. Additionally, non-working individuals experienced larger improvements in cognition, possibly because they faced more significant health and economic barriers before the policy's implementation.

The researchers suggest several pathways through which the poverty alleviation program boosted cognitive scores. First, the program improved both self-reported physical and mental health, freeing up mental energy for information processing. Second, households in the poverty program spent more on education and training, which correlated with better cognitive performance. Finally, the reduction of direct costs and increased rewards associated with acquiring new knowledge likely contributed to the observed cognitive gains.