Investing in resilience: A long-term analysis of china's flood protection strategies

• The study evaluates the relationship between investment and disaster impacts through the lens of the flood investment cycle model. • PRC succeeded in reducing flood damage because of increasing investment in flood protection. • Food protection investment is driven by three major factors: the occurrence of major disasters, the fiscal situation, and shifts in government policies. • PRC's experience offers valuable lessons for other developing countries facing similar challenges. Investing in disaster risk reduction is crucial for minimizing the impacts of disasters. However, little is known about the factors that influence changes in investment levels over time. This study aims to identify the key socio-economic drivers behind increases and decreases in flood protection investment in People's Republic of China (PRC). Such information is crucial for policy makers to justify flood investments. By analyzing data on flood protection expenditures, economic losses from floods, and other relevant indicators from 1980 to 2020, the study evaluates the relationship between investment and disaster impacts through the lens of the flood investment cycle model. It was found that the country succeeded in reducing flood damage because of increasing investment in flood protection. The results indicate that changes in PRC's flood protection investment have been driven by three major factors: the occurrence of major disasters, the fiscal situation, and shifts in government policies. Investment tended to increase following large-scale events, such as the 1998 Yangtze River Basin flood and the 2008 Wenchuan earthquake, which prompted policy changes and renewed focus on DRR measures. Fiscal constraints limited investment in the 1990s, but reforms and stimulus measures improved the financial situation, enabling increased spending on flood protection. PRC's experience in steadily reducing flood damage through sustained investment and policy commitment offers valuable lessons for other developing countries facing similar challenges.