The Empty Container Economy: The Billion-Dollar Business Nobody Sees
Why shipping lines sometimes spend money moving steel boxes with nothing inside — and how smarter logistics could turn this hidden cost into a competitive advantage.
A manufacturer is waiting for an empty container to ship its products overseas. Elsewhere, an importer has just unpacked a container and wants it collected. Nearby, a depot is filling up with empty boxes that nobody immediately needs.
There is no shortage of steel in the global container fleet. Yet the right container, in the right place, at the right time can be surprisingly difficult to find.
Welcome to the empty container economy: a vast, largely invisible part of international shipping that reveals an uncomfortable truth about globalisation.
The world does not simply need more containers. It needs its existing containers to be in the right places.
The journey that earns nothing
A shipping container is designed to carry cargo. But its commercial life does not end when the cargo is delivered.
After an import container is unpacked, the empty box may need to be inspected, cleaned, repaired, stored or returned to a designated depot. From there, it might be allocated to another exporter, repositioned to a different port or transported to a location where demand is stronger.
Every movement consumes resources.
Trucks burn fuel. Terminals use handling equipment. Depots occupy valuable land. Shipping lines pay for equipment management, repositioning and, where applicable, storage and handling.
An empty container may generate no cargo revenue on a particular leg, yet moving it can be essential to earning revenue on the next loaded voyage.
Industry studies have long identified empty-container repositioning as a structural challenge arising from imbalanced trade flows. A United Nations maritime logistics guidebook notes that around 20% of containers carried by maritime shipping are repositioned empty. The precise proportion varies with the market, geography and measurement used.
The problem is not that shipping companies have forgotten how to fill containers. It is that international trade rarely moves equal volumes of cargo in both directions.
When imports and exports refuse to balance
Consider a simplified example.
A country imports large quantities of consumer electronics, machinery and household goods in containers. Its exports, meanwhile, consist predominantly of commodities, bulk cargo or products that move through different transport systems.
The country may receive far more containerised imports than it sends out in export boxes.
After import cargo is unpacked, empty containers accumulate. Shipping lines must decide whether to retain them locally, allocate them to exporters, move them inland or transport them elsewhere.
Now imagine another market where exporters are ready to ship manufactured goods but cannot obtain sufficient empty containers of the required type.
The two markets may be thousands of kilometres apart, connected by complex shipping networks.
This is why an empty container in one location does not automatically solve a shortage somewhere else. It must be suitable for the intended cargo, available at the right time, positioned economically and compatible with the carrier's equipment arrangements.
The box is physically reusable. Its availability is geographically constrained.
The pandemic exposed the hidden weakness
The container shortages and freight-rate turmoil of 2020 and 2021 demonstrated how quickly equipment imbalances can disrupt global trade.
When lockdowns and shifting consumer demand altered cargo flows, shipping networks struggled to adjust. Congestion slowed the movement of vessels and equipment, while surging demand for imported goods in some markets created intense pressure on container availability.
UNCTAD's Review of Maritime Transport 2022 documented how the rapid recovery in demand, congestion and changes in shipping capacity contributed to equipment shortages and rising transport costs.
The episode exposed an important distinction: the global fleet could contain millions of containers while individual exporters still struggled to secure the equipment they needed.
A container delayed at a congested port cannot immediately serve a factory elsewhere. An empty box waiting at the wrong depot cannot fulfil a booking at another location without additional time and movement.
In logistics, total capacity and usable capacity are not always the same thing.
The smarter alternative: do not bring the empty box back unnecessarily
One promising solution is known as a street turn, also called triangulation in container logistics.
Instead of returning an empty import container to a terminal or depot before sending another empty container to an exporter, operators arrange for the same box to move directly from the importer to the exporter.
Imagine an importer in an industrial area receiving a container of machinery components. After unloading, the box is suitable for reuse. An exporter nearby has a compatible shipment ready for dispatch.
With the necessary shipping-line approvals, documentation, equipment arrangements and timing, the empty container can move directly to the exporter, be loaded and travel towards the port.
The unnecessary return journey and subsequent empty delivery may be avoided.
The principle is straightforward: match the next available export requirement with an existing empty container before creating another empty movement.
This is not merely a theoretical concept. A 2023 study published in the Journal of Transport Geography examined empty-container management in Colombia. Its modelling found that improved street-turn arrangements could reduce empty truck trips by up to 50% on the road freight corridors studied between the country's two principal ports and their hinterland regions.
That result applies to the study's particular model and corridors; it is not a universal saving that every shipping line or country can expect.
The wider lesson is nevertheless significant. Better coordination between importers, exporters, trucking companies and shipping lines can reduce unnecessary movements even when the underlying trade imbalance remains.
Why does the industry not do this everywhere?
If street turns can save money and reduce empty journeys, why are they not universal?
Because the container belongs to a wider operational and commercial system.
A shipping line may require the box to be returned to an authorised depot. An exporter may need a different container specification. The importer's unloading schedule may not match the exporter's cargo readiness. The container may require cleaning, inspection or repair.
Documentation, customs procedures, carrier permissions and contractual responsibilities must also be addressed.
There is an incentive problem, too. The party paying for a truck movement may not be the same party that benefits from avoiding it. Without suitable agreements and information sharing, an efficient solution for the supply chain as a whole may be unattractive to an individual participant.
This is where logistics management becomes more than transportation planning. It becomes a question of aligning incentives across independent businesses.
Can technology make empty containers more valuable?
Digital platforms could improve the matching of available empty containers with future export demand.
A useful system would combine container location, equipment type, condition, availability dates, depot restrictions and confirmed cargo bookings. Predictive analytics could help estimate where shortages are likely to emerge before they become operational emergencies.
Artificial intelligence could help identify potential matches between import deliveries and export bookings, while route optimisation could assess whether a direct transfer is economically preferable to returning the container to a depot.
But technology cannot manufacture commercial cooperation.
A sophisticated matching algorithm is of little value if parties do not share accurate information, agree on responsibility or permit the proposed movement.
The next generation of empty-container management will therefore depend on both digital visibility and practical collaboration.
The environmental equation
Every avoidable empty truck journey consumes fuel and contributes to emissions. Reducing such journeys can also ease local congestion and improve the utilisation of transport assets.
However, the environmental calculation is more complicated than simply counting empty boxes.
Moving an empty container by sea, rail or road has different energy implications. Repositioning it on a vessel that would sail anyway differs from operating a dedicated transport movement. A longer detour to collect an empty box may negate the benefit of avoiding another trip.
The objective should not be to eliminate every empty movement. It should be to minimise unnecessary movement while maintaining reliable equipment availability.
An empty container can be in the right place for a future shipment. In that situation, repositioning is not a failure of logistics; it is what makes the next shipment possible.
A new performance metric for shipping?
Shipping companies already monitor container utilisation, equipment availability, turnaround times and operational costs. A more integrated approach could also measure avoidable empty movements per loaded export, alongside the time taken to make equipment available to the next customer.
Such metrics would need clear definitions and safeguards against shifting costs or emissions from one transport mode to another.
For exporters, importers and logistics providers, the commercial opportunity is to treat empty equipment as a shared network resource rather than an isolated problem belonging to a single depot or shipping line.
For ports and policymakers, better hinterland connectivity, digital coordination and suitable infrastructure can help equipment move where it is needed.
For supply-chain leaders, the question is whether existing assets are being used intelligently before additional capacity is purchased.
The box that changes the way we think
The empty container economy challenges one of the simplest assumptions in business: that an asset without cargo has no immediate value.
In reality, its value depends on what it can carry next, where it is located and how quickly it can be made available.
The world's container fleet is not simply a collection of steel boxes. It is a mobile network of reusable assets whose usefulness depends on timing, location, compatibility and cooperation.
The next major efficiency gain in container shipping may not come only from larger vessels, faster cranes or more sophisticated ports.
It may come from asking a simpler question before moving another empty box:
Can the next shipment use the container that is already here?
Sometimes, the smartest journey in global logistics is the one that never needs to happen.
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