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Global Economic Research

Supply Side Problems Persist

Is the worst of supply bottlenecks behind us?

“Supply chain” used to be a piece of business jargon that rarely made its way into normal conversations. Today, it has become ubiquitous. Web searches for the term almost doubled between June and October 2021, temporarily overtaking “interest rates” as a subject of inquiry. Supply chain issues dominated the third quarter earnings season, with over 3,000 mentions by the executives of major corporations.

When supply chains work efficiently, store shelves and warehouses are filled, ensuring an uninterrupted flow of goods to consumers. But COVID-19 has introduced immense disruptions, which have left consumers and manufacturers to endure shortages of a wide range of items. These frustrations aren’t likely to end anytime soon.

As COVID-19 vaccines became widely available and economies reopened last year, consumption rebounded strongly. As consumption shifted from goods to services like travel and entertainment, expectations rose that the pressure on delivery channels would ease. However, the pandemic-induced increase in demand for goods has persisted even as demand for services returned to pre-pandemic levels in many places.

Weekly Economic Commentary - Chart 1

As a result, firms which relied on “just-in-time” processes and holding little inventory have been scrambling to carry on. Apart from the persistent strength of demand, factors like factory shutdowns in Asia, labor shortages in trucking, and a blockage in the Suez Canal have exacerbated disruptions in logistics. Sourcing has become increasingly concentrated in recent decades, so it has not been easy to find new supplies of scarce products.

Wave after wave of disruptions have led to increases in shipping costs, port congestion and extended delivery times. Higher energy prices and rising raw material costs added to the pain. Most experts anticipated that supply networks would repair themselves in fairly short order, but have been humbled by how long the bottlenecks have persisted.

We finally saw some tentative signs of improvement late last year. Factory closures, energy shortages and port-capacity limits eased in key manufacturing economies. Output from Malaysia, Vietnam and the Philippines rebounded, reducing bottlenecks that constrained the global availability of items like semiconductors and textiles.

In the U.S., surveys show that most retailers were able to successfully procure goods for the holiday season. The ports of Los Angeles and Long Beach, the biggest gateway for Asian imports into the United States, have reworked their processes to keep ships and goods moving.

European Purchasing Managers’ Indices show bottlenecks easing and input costs moderating for the first time in months. Clearer evidence can be seen in the supply of intermediate goods, where clogging caused by re-stocking and hoarding is waning.

As we move into the spring, demand-side stress on supply chains should moderate further, as consumers finally get to shift spending back to services. Once higher inflation starts restraining consumer spending and businesses finish replenishing their depleted inventories, the pressure on logistic networks will likely ease further.

Supply chain bottlenecks have eased a bit but remain a concern.

The worst of supply chain woes may be behind us, but there is still plenty of room for improvement. The Omicron variant has forced renewed lockdowns in producing nations; staff illnesses and quarantines continue to disrupt downstream logistics. The Federal Reserve Bank of New York’s Global Supply Chain Pressure Index, a composite of 27 variables, remains close to its all-time high.

Weekly Economic Commentary - Chart 2

While we are seeing progress in containers moving through docks, cargo is still moving slowly. The decline in the number of ships at anchorage is partly a result of a new queue system that encourages ships to wait further out in the ocean rather than close to coast. Freight rates are still well above their historical levels, presenting a challenge for factory operators. Some blockages will be tougher to resolve than others, given the concentrations of sourcing and production that exist for a range of items.

Uncertainty remains around the evolution of the virus. Even if it becomes more endemic, its effects could still produce waves of absenteeism that would clog distribution channels. And the emergence of a more severe variant at some point cannot be ruled out. Concerns over potential future waves may intensify precautionary hoarding of inputs and over-ordering, delaying the resumption of just-in-time practices.

Most Asian economies appear to have ditched their zero-infection approach towards the virus, with the notable exception of China. China represents over one-fourth of the world’s manufacturing value-added; temporary closures of plants and ports there may add to industry woes, exacerbating global logistics bottlenecks and pushing freight rates higher again.

When it comes to inventories, just in time may give way to just in case.

In sum, logistic frictions may stay with us for a while. The longer that supply chain disruptions last, the higher the risk of persistent inflation, which would trigger more hawkish action from central banks. It may be a long time before the term “supply chains” returns to the recesses of our vernacular.

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Vaibhav Tandon portrait

Vaibhav Tandon

Chief International Economist
Vaibhav Tandon is the Chief International Economist within the Global Risk Management division of Northern Trust. In this role, Vaibhav briefs clients and colleagues on the economy and business conditions, supports internal stress testing and capital allocation processes, and publishes the bank's formal economic viewpoint. He publishes weekly economic commentaries and monthly global outlooks.


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