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Demand is only the opening question. Aircraft, slots, crews, competition and connection banks determine whether a route can work.
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Ocean networks, ports and maritime bottlenecks.
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How Port Congestion Reaches Consumer Prices
A queue at a terminal becomes inventory delay, equipment imbalance, storage cost and eventually a retail decision.
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A foreign airline can carry passengers between two countries beyond its home market—but only when governments permit it.
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At constrained airports, runway access becomes a scheduled right rather than a simple timetable choice.
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