Ecology shapes moral judgments towards food-wasting behavior: Evidence from the Yali of West Papua, the Ngorongoro Maasai, and Poles

Children Value Animals More Than Adults Do: A Conceptual Replication and Extension

Recent psychological research finds that U.S. American children have a weaker tendency than U.S. American adults to value humans more than animals. We aimed to conceptually replicate and extend this finding in a preregistered study (N = 412). We investigated whether 6- to 9-year-old Polish children (Study 1a) are less likely to prioritize humans over animals than Polish adults are (Studies 1b and 1c). We presented participants with moral dilemmas where they had to prioritize either humans or animals (dogs or chimpanzees) in situations that involved harming (i.e., a trolley problem) or benefiting (i.e., giving a snack). We found that Polish children prioritized humans over animals less than Polish adults did. This was the case both in dilemmas that involved preventing harm and in dilemmas that involved providing snacks. Both children and adults prioritized humans over chimpanzees more than humans over dogs.

The Clean Your Plate Campaign: Resisting Table Food Waste in an Unstable World

The COVID-19 pandemic threatens global food security and has created an urgent need for food conservation. This article presents a review of clean plate campaigns around the world. It aims to fight food waste and reveal the factors that may influence food waste. The Clean Plate Club in the US developed during wartime and relied heavily on political power for compliance, whereas the Clean Plate movement in South Korea was based on religion. China’s Clean Your Plate Campaign (CYPC) has gone through two stages: CYPC I and CYPC II. The latter occurred during the unstable period of the COVID-19 pandemic. It was large-scale and more strongly enforced than CYPC I. In China, CYPC has relied more on personal virtue than on politics or religion. Culture, policy, COVID-19, and behavior are all important social factors that influence food waste. Specifically, two cultural values are drivers of food waste in China: hospitality and face-saving (mianzi). In terms of policy, China’s food waste law mainly relies on persuasion; it lacks any power of enforcement. Laws in France and Italy, by contrast, focus on re-using food and involve both coercion and incentives. COVID-19 may have led to panic purchasing and stockpiling, but, in general, it has resulted in a reduction in food waste.

The Effect of Stress on Individuals’ Wasting Behavior: The Mediating Role of Impaired Self-Control

Wasting behavior has become a serious issue in modern society, especially when individuals face economic recessions and environmental problems. Despite the literature exploring cultural and sociological antecedents of wasting behavior, limited attention has been given to the role of individuals’ associated psychological states. The present research fills this gap by examining how and why stress, a psychological state pervasive among people in the modern world, can influence individuals’ wasting behavior through three studies. Pilot study and Study 1 provide evidence of the positive relationship between stress and wasting behavior. Then, Study 2 sheds light on the mechanism underlying the proposed effect by taking impaired self-control as a mediator. Lastly, the theoretical contributions and practical implications of this research are discussed.

Does the "incentive hope" hypothesis explain food-wasting behavior among humans? Yes and no

In this commentary, we discuss how the "incentive hope" hypothesis explains differences in food-wasting behaviors among humans. We stress that the role of relevant ecological characteristics should be taken into consideration together with the incentive hope hypothesis: population mobility, animal domestication, and food-wasting visibility.