Does aquaculture add resilience to the global food system?

Aquaculture is the fastest growing food sector and continues to expand alongside terrestrial crop and livestock production. Using portfolio theory as a conceptual framework, we explore how current interconnections between the aquaculture, crop, livestock, and fisheries sectors act as an impediment to, or an opportunity for, enhanced resilience in the global food system given increased resource scarcity and climate change. Aquaculture can potentially enhance resilience…

The Tipping Game

This paper shows that in the presence of a tipping point in a natural system, stable partial cooperation may prevent tipping and if this is not possible, the remaining gains of cooperation are small. This is good news, because the big loss of ecosystem services from tipping can often be avoided. Moreover, the usual grim story that a high level of cooperation is hard to…

Discounting in the Presence of Scarce Ecosystem Services

Discounting has to take account of ecosystem services in consumption and production. Previous literature focuses on the first aspect and shows the importance of the relative price effect, for given growth rates of consumption and ecosystem services. This paper focuses on intermediate ecosystem services in production and shows that for limited substitutability and a low growth rate of these ecosystem services, the growth rate of…

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