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This study explored the economic, social and environmental impact of Thai rice research expenditure (categorized as breeding expenditure, production expenditure and processing expenditure) during 2008–2015, using the simultaneous equation modeling technique. The results showed that production-research expenditure was the most explicit to reduce the amount of nitrogen fertilizer usage, while breeding-research expenditure was the most explicit in terms of increasing farmers’ economic status from planting rice. Processing expenditure seemed to be the least effective spending among the three types. |
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