Oil Shocks and the Acceleration of Economic Change

Oil Shocks and the Acceleration of Economic Change:
Transcribed Class Presentation from 20^th March 2026
Bryan Mercadente

It is tempting, especially in the classroom, to treat an oil shock as a neat diagrammatic event: a leftward shift of the short-run aggregate supply curve, producing inflation and recession. This is correct, but it is also trivial. The deeper significance of a major exogenous shock lies not in the immediate movement of prices and output, but in its capacity to compress time. What might have taken twenty years of gradual adjustment is forced, in the space of one or two years, into reality. The shock does not create change. It accelerates it—often violently.

The threatened closure of the Strait of Hormuz provides a clear contemporary example. Roughly one-fifth of global oil supply passes through this narrow corridor. Even the possibility of disruption has driven oil prices above $100 per barrel. Should there be a full disruption, the reduction in supply—perhaps approaching 20 per cent—would dwarf the 7 per cent cut associated with the 1973 oil crisis. The mechanism is straightforward. Oil is embedded in nearly every stage of production. Higher oil prices raise transport costs, increase the price of inputs such as plastics and fertilisers, and elevate energy costs across industry. Firms face higher marginal costs and respond by raising prices, reducing output, or both. The result is the familiar combination of inflationary pressure and declining real GDP. However, this is only the beginning. The more interesting question is what happens next.

If the money supply remains fixed, the rise in the prices of essentials—food, heating, transport—forces households to reallocate expenditure. More income is devoted to necessities. Less remains for discretionary consumption. That means empty restaurants empty and holidays postponed. It means that consumer electronics gather dust on shelves. A recession develops, not as a uniform collapse, but as a sharp contraction in non-essential sectors. Policymakers, unwilling to accept this outcome, may expand the money supply to sustain demand. This delays the immediate downturn but risks embedding inflation. Either way, the economy is forced into a period of stress. It is under such stress that the real transformation begins.

In periods of stability, inefficiency is tolerated. Firms that might improve their processes instead continue with familiar methods. Technologies that promise long-term gains are postponed in favour of short-term convenience. Labour structures ossify. In short, the future is deferred. A recession removes this luxury. When profit margins collapse, survival depends on rapid adaptation. The question is no longer whether to change, but how quickly.

Consider the case of artificial intelligence. For years, firms have experimented cautiously with automation, integrating AI into limited functions while preserving large administrative and professional workforces. This gradualism reflects comfort. Salaried employees—analysts, middle managers, human resources bureaucrats, clerks—are kept on not because they are indispensable, but because the cost of replacing them does not yet outweigh the inconvenience. An oil-induced recession alters this calculation. Rising costs compress margins. The tolerance for inefficiency disappears. Tasks once performed by human labour are reassigned to algorithms, not out of enthusiasm for innovation, but from necessity. What might have been a decade-long transition becomes a two-year purge.

The implications for the salaried middle classes are obvious and, to some observers, not unpleasing. For decades, this class has occupied a peculiar status. It has enjoyed relative security, insulated from both the volatility of manual labour and the ruthless competition at the top of the income distribution. Its work—often procedural and only marginally productive—has been sustained by the inertia of large organisations. A shock removes that inertia. Firms rediscover that much of this labour is dispensable. The spreadsheet can be automated. The report can be generated by software. The meeting can be eliminated. The result is not merely unemployment, but a structural contraction of the class itself.

This process is the rule rather than the exception. The First World War gives a clear example of accelerated change. Before 1914, motor cars and lorries already existed, but they were expensive and not widely used. Most transport—civilian and military—still depended on horses. The change to mechanised transport was coming, but slowly, held back by cost and habit. The war removed these limits. Armies needed faster and more reliable ways to move men and supplies, and horses proved too fragile and inefficient. Losses were enormous, and replacement became impractical. Governments were forced to invest heavily in lorries, fuel systems, and road networks. What might have taken decades happened in a few years. By 1918, mechanised transport had proved its superiority, and after the war there was no return to the old system. The horse did not disappear, but it ceased to be central. The war did not invent motor transport—it forced its adoption.

The Second World War shows the same process in technology. Before 1939, computing existed in theory and in small experimental machines, but there was little pressure to develop it quickly. The war changed this. Codebreaking, radar, and artillery calculations required far more processing power than humans could provide. Projects such as Colossus and ENIAC were developed under extreme pressure, with resources concentrated and delays unacceptable. Progress that might have taken decades was compressed into a few years. By 1945, the foundations of modern computing and electronics were already in place. The war did not create these technologies, but it forced them into practical use. Afterward, their spread into the wider economy was inevitable.

In both cases, the pattern is the same. A major shock raises the cost of existing methods and makes new ones unavoidable. Change that would have been gradual becomes immediate. The shock does not create the future—it brings it forward.

A more recent example can be found in the financial crisis of 2008. Prior to the crisis, digital banking and online retail were growing steadily. After the crisis, cost pressures and changing consumer behaviour accelerated their adoption. Branch networks contracted. E-commerce expanded rapidly. Firms that failed to adapt disappeared. Again, the pattern is the same: the shock does not create the trend. It enforces it.

Returning to the present, the oil shock is likely to have similar effects beyond the labour market. Rising transport and energy costs will alter the geography of work. The trend towards remote working, already visible in the aftermath of the pandemic, will intensify. Commuting becomes more expensive. Office buildings become more costly to heat and light. Firms question the necessity of maintaining large urban offices. Workers, facing higher travel costs, prefer to remain at home. The result is a hollowing-out of city centres. Commercial property values fall. Retail and hospitality sectors contract. What had been a gradual shift in working patterns becomes a rapid reconfiguration of urban life.

You can lament these developments. You can speak of lost jobs and declining communities, of eroded of social stability. Do this and you miss the underlying logic. Economic systems are not designed for comfort. They are designed for efficiency, however harsh that efficiency may appear. Periods of stability allow inefficiencies to accumulate. Periods of crisis remove them.

The oil shock, therefore, should not be understood merely as a cause of inflation or recession. It is an event that forces decisions. Firms must adopt technologies they had previously postponed. Workers must adapt to new conditions or exit the labour market. Cities must justify their existence in economic terms or decline. The pace of change accelerates.

For the salaried middle classes, this is unlikely to be a pleasant experience. Their position has depended on a world where inefficiency could be sustained. That world is now under threat. The same forces that once created their security are now undermining it. You might, with a certain detachment, observe that this outcome was inevitable. The only question was timing. The oil shock has simply brought the future forward.

In conclusion, exogenous shocks such as the current disruption in oil markets do far more than alter prices and output. They compress time. They force the adoption of technologies, the restructuring of labour markets, and the transformation of economic geography. History shows that such shocks—whether wars, or financial crises, or commodity disruptions—consistently accelerate changes that were already underway. The present moment is no different. The adjustment will be rapid. It will be uneven. For some, it will be terminal.