Dr. Helena Markovic is a Croatian economist and logistics strategist who helps governments and firms see power where others see paperwork. As a consultant on trade vulnerability and industrial resilience for NATO and the EU, she works at the seam where supply chains meet policy. She grew up on the Adriatic, where a single closed crossing could strand a town, and she carries that lesson into boardrooms: flows are a public good and a strategic asset. Her writing blends fieldwork with clear-eyed analysis to show how bottlenecks form, how leverage is applied, and how resilience can be designed without hysteria. She believes that the spirit of Ragusa's merchant-republic - pragmatic, outward-looking, and careful with promises - still offers guidance for an interdependent age.