Cities can benefit from complex supply chains

Doğan, Nazlı B.; Mejía, Alfonso; Gomez, Michael

doi:10.1038/s42949-023-00100-5

Cited by 2 publications

(1 citation statement)

References 58 publications

(101 reference statements)

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“…Both software analyses intertwined 'supply chains' with 'management', 'market', and 'performance' concepts, indicating that managing flows is essential for a circular economy within cities. 'Supply chains' and broader supply chain networks (Do gan et al, 2023) are important in sustaining necessary materials (e.g., food, energy, and water) for cities to function (UN Habitat, 2022). Value chains are further 'supply chain' improvements, including business activities involving production and providing services.…”

Section: Leximancer Content Analysismentioning

confidence: 99%

The complexity and interconnectedness of circular cities and the circular economy for sustainability

Brglez,

Perc,

Lukman

2023

Sustainable Development

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In our study, we are evaluating the dynamic interplay between circular cities and the circular economy, revealing connections shaped by new research insights, using Web of Science database. We have in depth analysed 671 publications from 1990 to mid‐2023, employing Leximancer and VOSviewer tools. Our analysis uncovered key themes, including buildings, waste management, value chains, and sustainable development, linking the circular cities concept and circular economy framework. Emerging research trends, such as urban metabolism, urban mining, governance models, the built environment, sustainability benchmarks, and value chain management, signify deliberate shifts towards higher circular development and implementation. These trajectories harmonise with overarching sustainable development goals. Contemporary research emphasises urban mining, circular indicators, adaptive resource reuse, and urban structure regeneration. This focus facilitates transitioning from linear models to heightened circularity within urban contexts. Research inclination is shifting from traditional economic and environmental concerns towards holistic urban configurations that prioritise social integration, communal well‐being, and the dynamics of the social economy. Through this analytical expedition, we offer novel insights that enhance our understanding of the intricate symbiosis between circular cities and the circular economy. Our findings provide a scientific foundation for formulating targeted strategies by decision‐makers and guiding urban landscapes towards transformative trajectories aligned with sustainable development objectives and sustainable cities.

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Section: Leximancer Content Analysismentioning

confidence: 99%

The complexity and interconnectedness of circular cities and the circular economy for sustainability

Brglez,

Perc,

Lukman

2023

Sustainable Development

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Optimization of national grain imports to balance risk and return: a portfolio theory approach

Karakoc,

Konar

2024

Environ. Res.: Food Syst.

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Global grain trade plays a key role in food security. Many nations rely on imported grain to meet their dietary requirements. Grain imports may be at risk due to weather shocks, economic crises, or international conflicts. Countries aim to balance import risk with the expected return of their grain supplies. This research brings these dual objectives together in an innovative modern portfolio theory framework. Modern portfolio theory provides a set of concepts to formulate the trade-off between risk and expected return in national grain imports. Using Markowitz mean-variance optimization model, we identify opportunities to reduce risk in existing national grain import accounts, without increasing costs under realistic supply mass constraints of trade partners. Several major grain importers may be able to reduce risk in their grain imports without increasing cost, such as wheat imports in Egypt, maize imports in Vietnam, and rice imports in Saudi Arabia. However, some countries would indeed have to pay more to achieve more stable grain supplies, such as wheat imports in Turkey. This study provides a framework to quantify the different costs, benefits, and levels of risk in grain trade that can inform future research and decision-making.

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Cities can benefit from complex supply chains

Cited by 2 publications

References 58 publications

The complexity and interconnectedness of circular cities and the circular economy for sustainability

The complexity and interconnectedness of circular cities and the circular economy for sustainability

Optimization of national grain imports to balance risk and return: a portfolio theory approach

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