Kyushu University · Decision Sciences
Professor Tomoaki Nakaishi's research lab focuses on environmental sustainability and human behavior, with a particular emphasis on food waste valorization and the societal impacts of air pollution. The lab investigates technological and systemic inefficiencies in converting food waste into animal feed using data-driven methods such as data envelopment analysis (DEA), while also exploring how environmental stressors like air pollution influence moral cognition and ethical decision-making. By integrating environmental science with social science methodologies, the lab aims to uncover hidden inefficiencies in waste management and the broader psychological consequences of pollution. Their work bridges ecological sustainability with human behavior, offering policy-relevant insights for both industrial practices and public health.
Figures are computed from collected data and may differ slightly.
Abstract Converting food waste into animal-feed is highly useful for tackling the problem of food waste, which is particularly severe in developed countries. This study quantified inefficiencies in converting food waste into animal-feed and identified their causes through a data envelopment analysis (DEA) of the monthly input–output data of two producers of animal-feed obtained from food waste in Japan. Our empirical analysis revealed that the producers of animal-feed obtained from food waste (e
This study aimed to investigate whether global air pollution harms human morals beyond physiological and psychological health. To accomplish this, we conducted an original survey involving over 80,000 individuals across 30 countries, inquiring about their recent perceived unethical behaviors. Through regression analyses, we identified global evidence of a positive correlation between local monthly average concentrations of nitrogen dioxide (NO2) and perceptions of unethical behavior. This findin
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