Growth Poles Theory (update)

Updated the material discussing the foundations of the growth poles theory leaning on the principle of leading firms, supply chain linkages and economies of agglomeration. The concept is behind the agglomerative effects of many transport terminals, particularly ports. Growth Poles Theory | The Geography of Transport Systems (transportgeography.org)

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Conditions and outcomes of intermodal transport

Updated the page discussing under what main conditions intermodal transportation is taking place and with expected outcomes. Conditions and Outcomes of Intermodal Transport | The Geography of Transport Systems (transportgeography.org)

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Types of supply chain risks and their resilience

Added a new page discussing the main supply chain risks and for each type of risk which supply chain configuration is more resilient. Types of Supply Chain Risks and Their Resilience | The Geography of Transport Systems (transportgeography.org)

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Types of Supply Chain Risks and Their Resilience

Source: Adapted from McKinsey Global Institute (2020). Risk, resilience, and rebalancing in global value chains. There are a number of risks associated with supply chains, each related to a structure that can convey low or high resilience to disruptions. Concentration. Supply chains have a level of concentration that can be

Call for Papers: Aviation in the COVID19 Pandemic and Beyond

2022 Annual Meeting of the Association of American GeographersFebruary 25 – March 1, 2022 The COVID-19 pandemic has sparked the worst financial crisis in the century-long history of commercial aviation. Recovery has begun but very unevenly, and the future of airlines, airports, the many communities linked by aviation networks, and

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The most-traded goods, lead exporters and concentration levels

Added a page discussing that the concentration level of production is higher among exporters than importers, meaning that a few countries tend to account for a large share of the products traded on international markets. This can be associated with vulnerabilities in global supply chains. World’s Most Traded Goods, Lead

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World’s Most Traded Goods, Lead Exporter and Concentration, 2016

Source: Observatory of Economic Complexity, Massachusetts Institute of Technology. OECD (2021), “Global value chains: Efficiency and risks in the context of COVID-19”, OECD Policy Responses to Coronavirus (COVID-19), OECD Publishing, Paris. The concentration level of production is higher among exporters than importers, meaning that a few countries tend to account

Longest nonstop air routes (update)

A cluster of extreme long-distance air routes has emerged over the last decade, allowing to directly connect city-pairs in North America, East Asia, and the Middle East. The World’s Longest Nonstop Air Transport Routes, 2021 | The Geography of Transport Systems (transportgeography.org)

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Annual Air Transportation Growth and Economic Growth, 1950-2020 (update)

The Covid-19 pandemic represents the fourth time the industry experienced a decline. The most significant disruption experienced by air transportation and a strong divergence between passengers and freight activity, which was not apparent in previous phases. While the number of passenger-km declined by 65.6% between 2019 and 2020 (a loss of

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Share of World GPD, 1CE-2020 (update)

2020 data added. By 2020 China was able to reclaim a share of the global GDP similar to the one it help in the late 19th century. Share of the World’s GDP, 1CE – 2020 | The Geography of Transport Systems (transportgeography.org)

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