The early 2020s have been characterized by multiple convergent crises, including the Covid-19 pandemic and economic fallout of mitigation measures, Russia's invasion of Ukraine, and the ongoing sustainability and climate change crisis. This article discusses how the concept of the circular economy can inform responses to such crises by addressing four elements of a socio-economic system: technological innovation, supply chains and markets, public policy, and consumer behaviour. Synthesizing emerging insights from the scholarly and policymaking arenas, the article identifies the following ways that the circular economy concept can be effectively framed as crisis response: focusing on circularity in a more holistic way, adopting global value chains as the primary unit of analysis, pinpointing specific circularity aspects like drivers and barriers in value chains and business models, and extending the prevailing focus on technical aspects and material flows to often overlooked trade and geopolitical considerations. This discussion aims to articulate lessons for industry, policymakers, and scholars in leveraging a circularity approach to address the world's most pressing issues.

Transitioning from the ‘take-make-dispose’ linear production system to a circular economy can strengthen sustainability, and governments play a vital role. Recent scholarship has investigated policies for circular economy transition, but few studies take a perspective on circularity reform that spans geographies, industries, and product life-cycle stages. This article fills that gap by introducing a policy framework for the circular economy that includes over 100 policy instruments. The framework is developed from a review of 572 studies published in the academic and grey literature, along with policy databases and other documents. The findings are validated and supplemented by data from 33 semi-structured interviews with circular economy experts including scholars, policymakers, and representatives from NGOs and businesses. Derived primarily from the EU context but broadly applicable, the framework categorizes circular economy policies into nine groups. Six groups correspond to stages of the product life-cycle and three are overarching, capturing a holistic perspective mostly lacking in the literature. This study aims to promote a more structured discussion about circular economy policies and provides directions for future research by identifying topics where scholarship is thin. In addition to advancing theory, the framework can also serve as an assessment lens for designing circular economy policies.