{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,12]],"date-time":"2026-01-12T12:16:17Z","timestamp":1768220177298,"version":"3.49.0"},"reference-count":48,"publisher":"Institute for Operations Research and the Management Sciences (INFORMS)","issue":"1","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Operations Research"],"published-print":{"date-parts":[[2026,1]]},"abstract":"<jats:p>A New Perspective on Resilience in Flexible Supply Systems<\/jats:p>\n                  <jats:p>Supply disruptions and demand uncertainty are persistent threats in today\u2019s global operations landscape. In \u201cProcess Flexibility: A Distribution-Free Approach to Long Chain Resilience,\u201d Chen, Chou, and Sun revisit the long-standing concept of long chain flexibility and demonstrate its resilience in the face of supply-side risks. By deriving a closed-form bound on expected sales relative to full flexibility, the study offers a robust, distribution-free guarantee that highlights the long chain\u2019s ability to hedge against disruptions. The authors further generalize their findings using a novel moment decomposition approach, extending applicability to a broader range of service metrics and capacity-demand scenarios via semidefinite programming. 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