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International and domestic interprovincial trade of China are entangled, but their health impacts have been treated separately in earlier studies. Here Wang. quantify the complex impacts of trade on public health across China within an integrative framework.
Punishment by peers can enforce social norms, such as contributing to a public good. Here, Abbink and colleagues show that individuals will enforce norms even when contributions reduce the net benefit of the group, resulting in the maintenance of wasteful contributions.
Brummitt et al. show how supply-chain disruptions can spread contagiously throughout an economy. Adaptations to frequent disruptions can lead to the emergence of a poverty trap. Implications for ‘big push’ economic development policies are discussed.
Gächter et al. use experiments and simulations to show that low levels of cooperation (the ‘tragedy of the commons’) are systematically more likely in maintaining a public good than in providing a new one, even under identical incentives.