| Sumario: | Sub-Saharan Africa bears a disproportionate share of global poverty and is also among the regions most vulnerable to natural disasters that pose persistent threats to livelihoods, food security, and long-run development. This study examines how exposure to a major natural disaster—Cyclone Idai, one of the deadliest and costliest disasters in Mozambique’s history—affected household well-being and economic behavior in central Mozambique following its landfall in March 2019. We combine satellite-based best-track data on Cyclone Idai’s trajectory with longitudinal household survey data collected both shortly after the disaster and five to six years later. Specifically, we link predicted maximum wind speed at the community level to a pre-defined sample of households surveyed before the cyclone, allowing us to estimate impacts in the short run (within the same year) and the longer run. This design leverages rich pre-baseline data and province fixed effects to mitigate concerns about selection bias, displacement, and omitted variables that commonly complicate causal inference in disaster impact studies.
We find that greater cyclone exposure is strongly associated with short-run reports of shock experience and asset loss, validating predicted wind speed as a measure of disaster intensity. In the long run, however, households appear to recover from the immediate shock. Cyclone exposure is associated with persistent declines in reliance on agriculture as a primary livelihood and increases in small business activity and formal wage employment. At the same time, we observe mixed effects on asset ownership, with sustained declines in housing ownership alongside increases in durable asset holdings. Future work will continue to highlight how complex and heterogeneous pathways through which large-scale disasters reshape household livelihoods and economic behavior over time.
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