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The Covid-19 pandemic is a global shock that is significantly affecting coastal social-ecological systems (SES) in different parts of the world. Its widespread impacts have unravelled vulnerabilities in many aspects of society, including food systems. Our study investigated the impacts of a lockdown associated with the pandemic in the province of Bulacan, in the region of Central Luzon, Philippines, where aquaculture and capture fisheries are important and interconnected sectors. In particular, we focused on impacts related to production and market. We considered people’s coping strategies and the factors that enabled such strategies. Our investigation adopted a case study approach and drew on qualitative data analysed through thematic analysis. The findings revealed differentiated mechanisms through which aquaculture and capture fisheries production were impacted. Both were strongly affected by market disruptions but through slightly different ways. In effect, the lockdown provided the impetus for the uptake and spreading of practices that were previously peripheral, particularly in relation to market exchanges. The study also identified a variety of coping strategies, as well as the importance of social support in the form of food aid, financial assistance, and institutional livelihood assistance. Finally, it discusses the importance of diversity in food sources, the role of local food systems, and governance implications for foregrounding social-ecological resilience in short-term response and long-term recovery.

The grammar of institutions developed by Crawford and Ostrom presents a common syntax for analysing institutions and dismantles them into their components. This is a promising undertaking given the huge diversity of definitions of institutions, even within a single discipline. Additionally, the grammar opens a long existing black box regarding why individuals do or do not follow an institution. It differentiates between formal sanctions ('or elses' in the language of the grammar) which are already well analysed and more moral and emotion based factors (so called delta parameters). This process of differentiation is currently widely observed, particularly in economics. Recognising that it is a necessary step forward in analysing institutions, this paper analyses and develops the grammar: first, in relation to its syntactical clearness; and second, in relation to its particular emphasis on delta parameters as central elements for understanding the efficiency and effectiveness of institutions.

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