Since several years, the fragility of global supply chains (GSCs) is at historically high levels. In the same time, the landscape of hybrid threats is expanding. This paper aims to assess the economies' foreign input reliance and foreign market reliance, identify possible vulnerabilities by...

Using the confidential customs trade data from the U.S. Census, this paper examines the empirical evidence and motivations for multisourcing -- the purchase of the same input from multiple suppliers -- by U.S. importers of manufacturing inputs. The paper highlights a striking and novel sourcing...