Category: Economics for Business: Ch 23

Economic growth is closely linked to investment. In the short term, there is a demand-side effect: higher investment, by increasing aggregate demand, creates a multiplier effect. GDP rises and unemployment falls. Over the longer term, higher net investment causes a supply-side effect: industrial capacity and potential output rise. This will be from both the greater quantity of capital and, if new investment incorporates superior technology, from a greater productivity of capital.

One of the biggest determinants of investment is certainty about the future: certainty allows businesses to plan investment. Uncertainty, by contrast, is likely to dampen investment. Investment is for future output and if the future is unknown, why undertake costly investment? After all, the cost of investment is generally recouped over several months or year, not immediately. Uncertainty thus increases the risks of investment.

There is currently great uncertainty in the USA and its trading partners. The frequent changes in policy by President Trump are causing a fall in confidence and consequently a fall in investment. The past few weeks have seen large cuts in US government expenditure as his administration seeks to dismantle the current structure of government. The businesses supplying federal agencies thus face great uncertainty about future contracts. Laid-off workers will be forced to cut their spending, which will have knock-on effect on business, who will cut employment and investment as the multiplier and accelerator work through.

There are also worries that the economic chaos caused by President Trump’s frequent policy changes will cause inflation to rise. Higher inflation will prompt the Federal Reserve to raise interest rates. This, in turn, will increase the cost of borrowing for investment.

Tariff uncertainty

Perhaps the biggest uncertainty for business concerns the imposition of tariffs. Many US businesses rely on imports of raw materials, components, equipment, etc. Imposing tariffs on imports raises business costs. But this will vary from firm to firm, depending on the proportion of their inputs that are imported. And even when the inputs are from other US companies, those companies may rely on imports and thus be forced to raise prices to their customers. And if, in retaliation, other countries impose tariffs on US goods, this will affect US exporters and discourage them from investing.

For many multinational companies, whether based in the USA or elsewhere, supply chains involve many countries. New tariffs will force them to rethink which suppliers to use and where to locate production. The resulting uncertainty can cause them to delay or cancel investments.

Uncertainty has also been caused by the frequent changes in the planned level of tariffs. With the Trump administration using tariffs as a threat to get trading partners to change policy, the threatened tariff rates have varied depending on how trading partners have responded. There has also been uncertainty on just how the tariff policy will be implemented, making it more difficult for businesses to estimate the effect on them.

Then there are serious issues for the longer term. Other countries will be less willing to sign trade deals with the USA if they will not be honoured. Countries may increasingly look to diverting trade from the USA to other countries.

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Questions

  1. Find out what tariffs have been proposed, imposed and changed since Donald Trump came to office on 20 January 2025.
  2. In what scenario might US investment be stimulated by Donald Trump’s policies?
  3. What countries’ economies have gained or are set to gain from Donald Trump’s policies?
  4. What is the USMCA agreement? Do Donald Trump’s policies break this agreement?
  5. Find out and explain what has happened to the US stock market since January 2025. How do share prices affect business investment?
  6. Which sector’s shares have risen and which have fallen?
  7. Using the Data link above, find out what has been happening to the US Policy Uncertainty Index since Donald Trump was elected and explain particular spikes in the index. Is this mirrored in the global Policy Uncertainty Index?
  8. Are changes in the Policy Uncertainty Index mirrored in the World Uncertainty Index (WUI) and the CBOE Volatility Index: VIX?

Africa’s energy transition is at a pivotal moment. While the continent boasts abundant renewable energy resources, its electricity generation and distribution remain fragmented. Cross-border electricity trade has emerged as a potential game-changer, fostering energy security, reducing costs, and accelerating the adoption of renewables. However, is Africa fully leveraging this opportunity?

In a forthcoming paper in the Energy & Environment journal, I join forces with my colleagues Mercy Adaji and Bereket Kebede to argue that the answer to this question is no. Our study examines the impact of cross-border electricity trade in renewable electricity generation across 21 African countries over a 24-year period (1996–2020). Our findings indicate that a 1% increase in electricity trade significantly raises the share of renewables in total electricity output by approximately 0.05%. This underscores the crucial role of regional integration in advancing Africa’s clean energy goals, aligning with previous studies (e.g., Boz et al., 2021; Song et al., 2022, linked below) that highlight how electricity market integration promotes renewable energy investments by stabilising supply and mitigating intermittency risks.

Despite these advantages, cross-border electricity trade remains significantly underutilised due to regulatory barriers, inadequate infrastructure, and governance challenges.

Net electricity-importing countries tend to benefit more from trade, while net-exporting nations, particularly those reliant on fossil fuels, exhibit weaker positive impacts. Without targeted policies (such as carbon pricing and green subsidies) trade disparities may persist, slowing the transition to clean energy.

Moreover, our results highlight the pivotal role of governance in fostering a robust electricity market. This is neither surprising nor new – quality of governance matters over the long term in all aspects of economic activity. Agostini et al. (2019), for instance, show that well-structured regulations and strategic investments in interconnections enhance the effectiveness of cross-border electricity trade. Transparent regulatory frameworks, expanded grid interconnections, and harmonised energy policies can significantly boost the impact of regional electricity trade.

By strengthening collaboration, African nations can mitigate energy poverty, enhance supply reliability, and accelerate the shift toward a greener future.

To capitalise fully on cross-border electricity trade, African policymakers must prioritise regional energy integration, invest in infrastructure and implement incentives to spur renewable energy expansion. With the right policies and co-operative strategies, Africa can harness its vast renewable potential and achieve a more sustainable, energy-secure future.

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Questions

  1. How does electricity trade help mitigate the intermittency challenges of renewable energy, and what mechanisms could further enhance its effectiveness?
  2. The study highlights governance quality as a crucial factor in the success of cross-border electricity trade. What governance-related challenges do African countries face in implementing a unified electricity market, and how can policymakers address them to maximize trade benefits?
  3. Our results show that net electricity-importing countries tend to gain more from trade than net-exporting ones, particularly those relying on fossil fuels. What policy measures can be introduced to ensure that net-exporting countries also benefit from electricity trade while advancing renewable energy integration?
  4. What are the most critical infrastructure and policy gaps that hinder the growth of cross-border electricity trade in Africa, and how can these be overcome to facilitate a more sustainable energy transition?

Tesla sales have fallen dramatically recently. In Europe they were down 47.7% in January 2025 compared with January 2024. In Spain the figure was 75.4%, in France 63.4%, in Germany 59.5%, in Sweden 44.3%, in Norway 37.9%, in the UK 18.2% and in Italy 13.4%. And it was not just Europe. In Australia the figure was 33.2%, in China 15.5% and in California 11.6%. Meanwhile, Tesla’s share price has fallen from a peak of $480 on 17 December 2024 to $338 on 21 February 2025, although that compares with $192 in February 2024.

So why have Tesla sales fallen? It’s not because of a rise in price (a movement up the demand curve); indeed, Tesla cut its prices in 2024. Part of the reason is on the supply side. In several countries, stocks of Teslas are low. Some consumers who would have bought have had to wait. However, the main reason is that the demand curve has shifted to the left. So why has this happened?

A reaction to Elon Musk?

One explanation is a growing unpopularity of Elon Musk among many potential purchasers of electric vehicles (EVs). People are more likely to buy an EV if they are environmentally concerned and thus more likely to be Green voters or on the political left and centre. Elon Musk, by supporting Donald Trump and now a major player in the Trump administration, is seen as having a very different perspective. Trump’s mantra of ‘drill, baby drill’ and his announced withdrawal from the Paris agreement and the interventions of Trump, Vance and Musk in European politics have alienated many potential purchasers of new Teslas. Elon Musk has been a vocal supporter of the right-wing Alternative for Germany (AfD) party, describing the party as the ‘last spark of hope for this country’ (see BBC article linked below).

There has been outspoken criticism of Musk in the media and the Financial Times reports existing owners of Teslas, who are keen to distance themselves from Musk, ordering stickers for their cars which read ‘I bought this before Elon went crazy’. In a survey by Electrifying.com, 59% of UK potential EV buyers stated that Musk’s reputation put them off buying a Tesla.

Other reasons for a leftward shift in the demand for Teslas

But is it just the ‘Musk factor’ that has caused a fall in demand? It is useful to look at the general determinants of demand and see how each might have affected the demand for Teslas.

The price, number, quality and availability of substitutes  Tesla faces competition, not only from long-established car companies, such as Ford, VW, Volvo/Polestar, Seat/Cupra and Toyota, moving into the EV market, but also from Chinese companies, such as BYD and NIO. These are competing in all segments of the EV market and competition is constantly increasing. Some of these companies are competing strongly with Tesla in terms of price; others in terms of quality, style and imaginative features. The sheer number of competitor models has grown rapidly. For some consumers, Teslas now seem dated compared with competitors.

The price and availability of complements.  The most relevant complement here is electrical charging points. As Teslas can be charged using both Tesla and non-Tesla charging points, there is no problem of compatibility. The main issue is the general one for all EVs and that is how to achieve range conveniently. The fewer the charging points and more widely disbursed they are, the more people will be put off buying an EV, especially if they are not able to have a charging point at home. Clearly, the greater the range of a model (i.e. the distance that can be travelled on a full battery), the less the problem. Teslas have a relatively high range compared with most (but not all) other makes and so this is unlikely to account for the recent fall in demand, especially relative to other makes.

Expectations.  The current best-selling Tesla EV is the Model Y. This model is being relaunched in a very different version, as are other Tesla models. Consumers may prefer to wait until the new models become available. In the meantime, demand would be expected to fall.

Conclusions

As we have seen, there have been a number of factors adversely affecting Tesla sales. Growing competition is a major factor. Nevertheless, the increasing gap politically between Elon Musk and many EV consumers is a major factor – a factor that is likely to grow in significance if Musk’s role in the Trump administration continues to be one of hostility towards the liberal establishment and in favour of the hard right.

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Questions

  1. Why have BYD EV sales risen so rapidly?
  2. If people feel strongly about a product on political or ethical grounds, how is that likely to affect their price elasticity of demand for the product?
  3. Find out how Tesla shareholders are reacting to Elon Musk’s behaviour.
  4. Find out how Tesla sales have changed among (a) Democratic voters and (b) Republican voters in the USA. How would you explain these trends?
  5. Identify some products that you would or would not buy on ethical grounds. How carefully have you researched these products?

The market for crude oil is usually a volatile one. Indeed, in the last few months, the market has seen prices rise and fall due to various supply and demand influences. Crude oil is coined the ‘King of Commodities’ due to the impact it has on consumers, producers and both the micro and macro economy. The price of crude oil affects everything from the cost of producing plastics, transportation, and food at the supermarket.

This makes the market for crude oil an economic powerhouse which is closely watched by businesses, traders, and governments. To gain a full understanding of the movements in this market, it is important to identify how demand and supply affect the price of crude oil.

What influences the demand and supply of crude oil?

The law of demand and supply states that if demand increases, prices will rise, and if supply increases, prices will fall. This is exactly what happens in the market for crude oil. The consumer side of the market consists of various companies and hundreds of millions of people. The producer side of the market is made up of oil-producing countries. Collectively, both consumers and producers influence the market price.

However, the demand and supply of crude oil, and therefore the price, is also affected by global economic conditions and geopolitical tensions. What happens in the world impacts the price of oil, especially since a large proportion of the world’s biggest oil producers are in politically unstable areas.

Over the past five years, global events have had a major impact on the price of oil. The economic conditions created by the impact of the COVID pandemic saw prices plummet from around $55 per barrel just before the pandemic in February 2020 to around $15 per barrel in April 2020. By mid-2021 they had recovered to around $75 per barrel. Then, in the aftermath of Russia’s invasion of Ukraine in February 2022, the price surged to reach $133 in June 2022. More recently, geopolitical tensions in the Middle East and concerns about China’s economic outlook have intensified concerns about the future direction of the market. (Click here for a PowerPoint of the chart.)

Geopolitical tensions

In the first week of October 2024, the price of crude oil rose by almost 10% to around $78 per barrel as the conflict in the Middle East intensified. It unfortunately comes at a time when many countries are starting to recover from the rise in oil prices caused by the pandemic and the war in Ukraine. Any increase in prices will affect the price that consumers pay to fill up their vehicles with fuel, just when prices of diesel and petrol had reached their lowest level for three years.

The Governor of the Bank of England, Andrew Bailey, has said that the Bank is monitoring developments in the Middle East ‘extremely closely’, as the conflict has the potential to have serious impacts in the UK. The Bank of England will therefore be watching for any movement in oil prices that could fuel inflation.

The main concerns stem from further escalation in the conflict between Israel and the Iran-backed armed group, Hezbollah, in Lebanon. If Israel decides to attack Iran’s oil sector, this is likely to cause a sharp rise in the price of oil. Iran is the world’s seventh largest oil exporter and exports over half of its production to China. If the oilfields of a medium-sized supplier, like Iran, were attacked, this could threaten general inflation in the UK, which could in turn influence any decision by the Bank of England to lower interest rates next month.

Supply deficits

This week (2nd week of October 2024) saw the price of crude oil surge above $81 per barrel to hit its highest level since August. This rise means that prices increased by 12% in a week. However, this surge in price also means that prices rose by almost 21% between the start September and the start of October alone. Yet it was only in early September when crude oil hit a year-to-date low, highlighting the volatility in the market.

As the Middle-East war enters a new and more energy-related phase, the loss of Iranian oil would leave the market in a supply deficit. The law of supply implies that such a deficit would lead to an increase in prices. This also comes at a time when the US Strategic Petroleum Reserve has also been depleted, causing further concerns about global oil supply.

However, the biggest and most significant impact would be a disruption to flows through the Strait of Hormuz. This is a relatively narrow channel at the east end of the Persian Gulf through which a huge amount of oil tanker traffic passes – about a third of total seaborne-traded oil. It is therefore known as the world’s most important oil transit chokepoint. The risk that escalation could block the Strait of Hormuz could technically see a halt in about a fifth of the world’s oil supply. This would include exports from big Gulf producers, including Saudi Arabia, UAE, Kuwait and Iraq. In a worst-case scenario of a full closure of the Strait, a barrel of oil could very quickly rise to well above $100.

Disruption to shipments would also lead to higher gas prices and therefore lead to a rise in household gas and electricity bills. As with oil, gas prices filter down supply chains, affecting the cost of virtually all goods, resulting in a further rise in the cost of living. With energy bills in the UK having already risen by 10% for this winter, an escalation to the conflict could see prices rise further still.

China’s economic outlook


Despite the concern for the future supply of oil, there is also a need to consider how the demand for oil could impact price changes in the market. The price of oil declined on 14 October 2024 in light of concerns over China’s struggling economy. As China is the world’s largest importer of crude oil, there are emerging fears about the potential limits on fuel demand. This fall in price reversed increases made the previous week as investors become concerned about worsening deflationary pressures in China.

Any reduced demand from China could indicate an oversupply of crude oil and therefore potential price declines. Official data from China reveal a sharp year-on-year drop in the producer price index of 2.8% – the fastest decline in six months. These disappointing results have stirred uncertainty about the Chinese government’s economic stimulus plans. Prices could fall further if there are continuing doubts about the government’s ability to implement effective fiscal measures to promote consumer spending and, in turn, economic growth.

As a result of the 2% price fall in oil prices on 14 October, OPEC (the Organization of the Petroleum Exporting Countries) has lowered its 2024 and 2025 global oil demand growth. This negative news outweighed market concerns over the possibility that an Israeli response to Iran’s missile attack could disrupt oil production.

What is the future for oil prices?

It is expected that the market for oil will remain a volatile one. Indeed, the current uncertainties around the globe only highlight this. It is never a simple task to predict what will happen in a market that is influenced by so many global factors, and the current global landscape only adds to the complexity.

There’s a wide spectrum of predictions about what could come next in the market for crude oil. Given the changes in the first two weeks of October alone, supply and demand factors from separate parts of the globe have made the future of oil prices particularly uncertain. Callum Macpherson, head of commodities at Investec, stated in early October that ‘there is really no way of telling where we will be this time next week’ (see the first BBC News article linked below).

Despite the predominately negative outlook, this is all based on potential scenarios. Caroline Bain, chief commodities economist at Capital Economics suggests that if the ‘worst-case scenario’ of further escalation in the Middle East conflict does not materialise, oil prices are likely to ‘ease back quite quickly’. Even if Iran’s supplies were disrupted, China could turn to Russia for its oil. Bain says that there is ‘more than enough capacity’ globally to cover the gap if Iranian production is lost. However, this does then raise the question of where the loyalty of Saudi Arabia, the world’s second largest oil producer, lies and whether it will increase or restrict further production.

What is certain is that the market for crude oil will continue to be a market that is closely observed. It doesn’t take much change in global activity for prices to move. Therefore, in the current political and macroeconomic environment, the coming weeks and months will be critical in determining oil prices and, in turn, their economic effects.

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Questions

  1. Use a demand and supply diagram to illustrate what has happened to oil prices in the main two scenarios:
    (a) Conflict in the Middle East;
    (b) Concerns about China’s economic performance.
  2. How are the price elasticities of demand and supply relevant to the size of any oil price change?
  3. What policy options do the governments have to deal with the potential of increasing energy prices?
  4. What are oil futures? What determines oil future prices?
  5. How does speculation affect oil prices?

Gold has always held an allure and with the price of gold on international markets trending upwards since October 2022 (see Figure 1: click here for a PowerPoint), people seem to be attracted to it once again. The price reached successively higher peaks throughout 2023 before surging to above $2300 per oz in 2024 and peaking at $2425.31 per oz on 20 May 2024.

While gold tends to become attractive during wartime, economic uncertainty and bouts of inflation, all of which have characterised the last few years, the sustained price rise has perplexed market analysts and economists. The rally had been expected to peter out over the past 20 months. But, as the price of gold rose to sustained higher levels, with no significant reversals, some analysts have speculated that it is not the typical short-term factors which are driving the increased demand for and price of gold but more fundamental changes in the global economic system.

This blog will first discuss the typical short-term factors which influence gold prices before discussing the potential longer-term forces that may be at work.

Short-term factors

So, what are the typical short-term economic forces which drive the demand for gold?

The most significant are the real rates of interest on financial assets. These rates represent the opportunity cost of holding an asset such as gold which offers no income stream. When the real return from financial assets like debt and equity instruments is low, the demand for and price of gold tends to be high. In contrast, when the real return from such assets is high, the price of gold tends to be lower. An explanation for this is that real rates of return are strongly related to inflation rates and investors perceive gold as a hedge against inflation since its price is positively correlated with a general rise in prices. Higher unexpected inflation reduces the real rate of return of securities like debt and equity whose value is derived from cash flows anticipated in the future. In such circumstances, gold become an attractive alternative investment. As inflationary expectations decline, real returns from financial assets should rise, and the demand for gold should fall.

The relationship between real returns, proxied by the yield on US 10-year TIPS (Treasury inflation-protected securities), and gold prices can be used to examine this explanation. Real returns rose steadily in the aftermath of the COVID-19 pandemic. Yet the price of gold, which rose during the early stages of the pandemic in 2020, has not fallen. Instead, it has remained at elevated levels for much of that time (see Figure 2: click here for a PowerPoint).

There have been short periods when changes in real returns seemed to have a high correlation with changes in gold prices. In late 2022, for example, falling real rates coincided with rising gold prices. The same pattern was repeated between October and December 2023. However, when real returns rose again in the New Year of 2024, in response to stubbornly higher expected inflation and the expectation of ‘higher-for-longer’ interest rates, particularly in the USA, gold prices continued to rise. Indeed, across the 5-year period the correlation coefficient between the two series is actually positive at 0.268, showing little evidence supporting this explanation for the pattern for the gold price.

Real returns in the USA, however, may not be the correct ones to consider when seeking explanations for the pattern of gold’s price. Much of the recent demand is from China. Analysts suggest that Chinese investors are looking for a safe asset to hold as their economy stagnates and real returns from alternatives, like domestic property and equity, have decreased. Further, there are some concerns that the Chinese currency, the renminbi, may be undervalued in response to the sluggish growth. Holding gold is a good hedge against inflation (currency depreciation produces inflationary pressure). Consequently, the Chinese market may be exerting pricing power in relation to real returns in a way not seen before (see the Dempsey and Leng FT article linked below).

However, some analysts suggest that the rise in price is disproportionate to these short-term factors and point to potential long-term structural changes in the global financial order which may produce significant changes in the market for gold.

Long-term factors

Since 2018, there have been bouts of gold purchasing by central banks around the world. In contrast to the 1990s and 2000s, central banks have been net purchasers since 2010. The purchasing fell back during the coronavirus pandemic but has surged again, with over 1000 metric tonnes purchased in both 2022 and 2023 (see Figure 3: click here for a PowerPoint).

Analysts have pointed to similarities between the recent pattern and central bank purchases of gold during the late 1960s and early 1970s (see The Conversation article linked below). Then, central banks sought to diversify themselves from dollar-denominated assets due to concerns about higher inflation in the USA and its impact on the value of the US dollar. Under the Bretton Woods fixed exchange rate system, central banks could redeem dollars for gold from the US Federal Reserve at a fixed rate. The pressure on the USA to redeem the gold led to the collapse of the Bretton Woods fixed exchange rate system.

While the current period of central bank purchases does not appear to be related to expected inflation, some commentators suggest it could signal a regime change in the global financial system as significant as the collapse of Bretton Woods. The rise of Chinese political power and the resurgence of US isolationist tendencies portend an increasingly multipolar geopolitical scene. Such concerns may cause central bankers to diversify away from dollar denominated assets to avoid being caught out by geopolitical tensions. Gold may be perceived as an asset through which investors can hedge that risk better.

Indeed, the rise in demand among Chinese investors may indicate a reluctance to hold US assets due to their risk of seizure during heightened geopolitical tensions between China and the USA. Chinese holdings of US financial assets as a percentage of GDP are back to the level they were  when the country joined the World Trade Organisation (WTO) in 2001 (see the Rana Foroohar FT article linked below). Allied to this is an increasing tendency to repatriate gold bullion from centres such as London and New York.

Added to these worries about geopolitical risk are concerns about traditional safe-haven assets – government debt securities. US government budget deficits and debt levels continue to rise. Similar patterns are observed across many developed market economies (DMEs). Analysts are concerned such debts are reaching unsustainable levels (economist.com). The view is that at some point, perhaps soon, a tipping point will be reached where investors recognise this. They will demand higher rates of return on these government debt securities, pushing yields up and prices down (bond yields and prices have a negative relationship).

In expectation of this, investors may be wary of holding such government debt securities and move to hold gold as an alternative safe-haven asset to avoid potential capital losses. However, there has been no sign of this behaviour in bond prices and yields yet.

Finally, there are economists who argue that the increased demand for gold is caused by a different regime-change in the global economy. This is not one driven by geopolitics, but by changing inflationary expectations – from a low-inflation, low-interest-rate environment to a higher-inflation, higher-interest-rate environment.

Some of the anticipation relating to inflation is derived from the persistent fiscal stimulus, evidenced by the higher government debt levels described above, coupled with the long period of monetary stimulus (quantitative easing) in developed market economies during the 2010s.

Further, some economists highlight the substantial capital investment needed for the green transition and reindustrialisation. While the financing for this capital investment may absorb some of the excess money flowing around financial markets, the scale involved will create a great demand for resources, fuelling inflation and raising the cost of capital as borrowers compete for resources.

Finally, the demographic forces from an aging population will also cause inflationary pressures. Rising dependency ratios across many developed market economics will create shortages, particularly of labour. This persistent scarcity of labour will continually drive up wages and prices, fuelling inflation and the demand for gold.

Conclusion

The recent surge in the price of gold has led to great interest by investors, financial market analysts and economists. At first, there was a perception that the price increase was similar to recent history and driven by short-term decreases in the real rate of return from financial assets, which reduced the opportunity cost of holding gold.

However, as the upward trend in the price of gold has persisted and does not seem to be explained by changes in real interest rates, economists have considered other reasons that might signal longer-term significant changes in the global financial system. These relate to changing geopolitical risk derived from an increasingly multipolar environment, concerns about the sustainability of government debt levels and expectations of persistently higher inflation in the world economy.

Only time will tell whether these explanations prove correct. If inflationary pressures subside, particularly in the USA, and if real returns from financial assets rebound, a decrease in the demand for and price of gold will suggest that the previous rise was driven by short-term forces.

If prices don’t fall back, it will only fuel the debate that it is a sign of significant changes in the global financial order.

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  • Gold
  • Trading Economics

Questions

  1. Explain the relationship between real returns and inflation for financial securities like debt and equity.
  2. Why is gold perceived to be an effective hedge against inflation?
  3. Contrast the factors which influenced the demand for gold in the period which preceded the end of Bretton Woods with those influencing demand now?
  4. What has happened to the price of gold since this blog was published? Is there any evidence for the profound changes in the global economic order suggested or was it the short-term forces driving demand after all?