Impact of agricultural subsidy on chemical fertilizer use: Empirical evidence of China’s Organic-Substitute-Chemical-Fertilizer policy based on double machine learning
Lei Deng e outros, 2025 · PLOS One
China's Organic-Substitute-Chemical-Fertilizer pilot program reduced county-level chemical fertilizer application intensity by 0.068 standard deviations.
Estimativa · Chemical fertilizer use per hectare in pure terms, z-score normalized
-0,0681 [-0,131; -0,00538]
standard deviations (z-score) · calculado a partir do erro-padrão
p: ***
- Desenho
- Diferenças em diferenças. Difference-in-differences using double machine learning with county and year fixed effects
- População
- 2,319 counties in China, 2012–2022
- Amostra
- 25.509 · county-year observations
Onde está o número
Table 2, row 'OSCF', column (5)
OSCF | −0.1206***(0.0541) | −0.1024***(0.0316) | −0.0982***(0.0323) | −0.0855***(0.0321) | −0.0681***(0.0320)
Contexto
What changed: Pilot counties implemented the Organic-Substitute-Chemical-Fertilizer policy, subsidizing organic fertilizer adoption and eco-friendly techniques. Comparison: Pilot counties compared to non-pilot counties from 2012 to 2022. Limits: Fertilizer use is measured at the aggregate county level rather than by specific crop or farm, and unobserved local practices may persist.
Caminho no grafo
- FamíliaTransferências, subsídios e financiamento
- TipoSubsídios
- EixoNitrogênio e fósforo
MAGI só cita evidência deste instrumento
Lugares do estudo
- China · País · CN
- Licença
- CC-BY
- Revisão
- Extraído por máquina, não revisadoExtraído por: gemini-3.8-flash, 2026-10-23