Abstract
AbstractThis study presents the environmental impacts of agricultural policy instruments as evidence from anex-antefarm-level policy simulation model in Japan. Simulations did indicate that all types of agri-environmental payments achieved the environmental benefit for the land studied. Conversely, market price support does not inevitably increase nitrogen runoff or greenhouse gas emissions at any time since paddy fields themselves have the function of purifying water pollution and work as a biodiversity nursery. The direction and magnitude of the policy impacts are an empirical matter that should be considered carefully at a local level.
Highlights
There is vast literature investigating the environmental risks of agricultural support policies (e.g., Wu, Mapp, and Bernardo 1994; Lewandrowski, Tobey, and Cook 1997; Smith and Goodwin 2003; Eagle, Rude, and Boxall 2016; Babu, Mavrotasa, and Prasaia 2018)
This study looks at an ex-ante quantitative assessment of agricultural policy impacts on biodiversity in paddy fields
Policies that incentivize an increase in production on the intensive margin have a negative environmental impact
Summary
There is vast literature investigating the environmental risks of agricultural support policies (e.g., Wu, Mapp, and Bernardo 1994; Lewandrowski, Tobey, and Cook 1997; Smith and Goodwin 2003; Eagle, Rude, and Boxall 2016; Babu, Mavrotasa, and Prasaia 2018). The model used in this study quantifies how the following policy measures influence agricultural production practices and environmental effects: nitrogen (N) runoff, greenhouse gas (GHG) emissions, and biodiversity in paddy fields.
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