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07 April 2025 Photo Supplied
Dr Calvin Mudzingiri
Dr Calvin Mudzingiri, Assistant Dean: Faculty of Economic and Management Sciences, University of the Free State, Qwaqwa Campus.

Opinion article by Dr Calvin Mudzingiri, Assistant Dean: Economic and Management Sciences, University of the Free State, Qwaqwa Campus 


The sudden hike of import tariffs by US President Donald Trump and his administration to countries across the world is set to reduce the volume of goods traded and affect citizen welfare across the globe. The Trump administration implemented a global 10% import tariff and a varying targeted reciprocal tariff to a host of countries, including South Africa. The reciprocal import tariff to be levied on South African export goods to the US is set at 30%. Historical data show that yearly trade between SA and US amounts to $23 billion and the US is SA’s the second biggest trading partner after China. The high tariff will reduce the competitiveness of South African export goods to American markets, leading to reduced demand of SA exports in US markets, low income to firms, job losses, low income to households and ultimately lower South African economic growth.

 

SA and US trade

South Africa exports platinum, locally assembled cars, raw aluminium, ferroalloys and agriculture products, among other goods, to the US. The implication of the US administration’s 30% tariff hike could result in job losses in the mining, automobile, agriculture and many other industries. More income losses to SA agricultural exports can also be experienced if the African Growth Opportunity Act (AGOA) expires in September 2025, if the US congressmen decide not to renew the agreement. Given the low economic growth rate in South Africa in 2024, which is estimated at 0.6%, the tariff hike by the US will exacerbate sluggish economic growth and recovery from the COVID 19 pandemic. 

Statistics also show that SA imports energy products, machinery, vehicle, industrial and other consumer goods. The goods and services SA imports from the US play a critical role in developing and sustaining local industry. SA can decide to source the goods from other markets and if this happens with all economies where tariffs were imposed, the US will be worse off. There is a possibility that economies which received a tariff hike from the US will implement a reciprocal tariff hike to the US reducing the volume of global trade. The reduced trade volumes have dire implications for job creation, income generation by firms and households, making citizens worse off.


US current trade policy

It is important to note that President Trump administration’s trade policies are premised on a trade notion synonymous to ‘mercantilism’, which was practised in Europe between the 16th to 18th centuries. Under mercantilism, an economy aims to maintain a trade surplus, the government regulate the economy, discourage imports (in the case of the US using tariff hikes) and promote growth of home industries among other initiatives. Conventional economics wisdom has proved that policies pursued by the Trump administration of protectionism are a breeding ground for trade wars. There is great potential of fellow trading partners retaliating and if that happens, global citizens will be made worse off as they will be forced to pay high prices for goods due to additional costs driven by tariff hikes. In addition, US industry relies on raw materials from other countries. If the suppliers of raw material resources retaliate, the production cost model of US firms will rise, reducing export competitiveness of US exports.

Trump’s administration is calling for firms across the world to move and produce goods in the US to avoid tariff levies. The action works against the benefits of free trade and can affect firms’ comparative advantages. The production cost structure in the US can be higher than in other countries leading to firms realising low profits if they move to the US. It is essential to note that free trade with absolutely no trade barriers will enhance the welfare of citizens at large, since goods and services will be purchased at low prices. The US government’s act of over-regulating trade can limit economic growth not only of other countries but even that of the US economy.

 

Options for the SA government

In the face of trade adversity, the SA government must not fold its hands and do nothing. It is enlightening to note that the authorities have already initiated diplomatic and trade negotiations. Negotiations can possibly focus on tariff reduction, maintaining the AGOA, and delving deep in the logic used to arrive at the 30% tariff hike. The diplomatic initiatives must encompass improving perceptions and clarity of SA policies such as the Expropriation Act which is one of the reasons cited by the US administration in ratcheting the tariff trade war.

South Africa must re-orient its trading patterns and partnerships. The aggregate world gross domestic product (GDP) is greater than the US total production for goods and services. There is need for SA to improve trade relations with other economies to broaden its trade base. The current frosty trade relationship between SA and the US presents a window to strengthen trade with the EU, Asia, BRICS plus, Africa, and any other economy willing to get into trade partnerships. SA must explore other markets where the export goods still enjoy competitiveness.

To ensure economic resilience to trade wars in the long run, SA needs to seriously invest in research and development that promote value addition of local production, enhancing local production and technology advancement that can stimulate economies of scale, which can boost competitiveness of export goods. Competitiveness can be further enhanced by improving energy production efficiency, which is a crucial input of goods and services production. Developing a powerful and skilled human capital base can lead to labour productivity efficiency, further enhancing competitiveness. SA has a dilapidated infrastructure ranging from roads, rail, buildings and industry among others. Improving the infrastructure will go a long way in improving local production, leading to creation of jobs and improved incomes for households.

Boosting local economic activity can stimulate local consumption of goods as household income improves. If the incomes of SA citizens improve, there is a potential to increase local consumption. Goods meant for export markets can end up being consumed in the domestic markets, providing a homemade solution to dwindling export goods markets. The SA government must consider developing and supporting new industries that can compete in the local and international markets. In this way, the trade challenges posed by unfriendly US administration trade policies can present opportunities to the SA economy in the long run.

News Archive

Fight against Ebola virus requires more research
2014-10-22

 

Dr Abdon Atangana
Photo: Ifa Tshishonge
Dr Abdon Atangana, a postdoctoral researcher in the Institute for Groundwater Studies at the University of the Free State (UFS), wrote an article related to the Ebola virus: Modelling the Ebola haemorrhagic fever with the beta-derivative: Deathly infection disease in West African countries.

“The filoviruses belong to a virus family named filoviridae. This virus can cause unembellished haemorrhagic fever in humans and nonhuman monkeys. In literature, only two members of this virus family have been mentioned, namely the Marburg virus and the Ebola virus. However, so far only five species of the Ebola virus have been identified, including:  Ivory Coast, Sudan, Zaire, Reston and Bundibugyo.

“Among these families, the Ebola virus is the only member of the Zaire Ebola virus species and also the most dangerous, being responsible for the largest number of outbreaks.

“Ebola is an unusual, but fatal virus that causes bleeding inside and outside the body. As the virus spreads through the body, it damages the immune system and organs. Ultimately, it causes the blood-clotting levels in cells to drop. This leads to severe, uncontrollable bleeding.

Since all physical problems can be modelled via mathematical equation, Dr Atangana aimed in his research (the paper was published in BioMed Research International with impact factor 2.701) to analyse the spread of this deadly disease using mathematical equations. We shall propose a model underpinning the spread of this disease in a given Sub-Saharan African country,” he said.

The mathematical equations are used to predict the future behaviour of the disease, especially the spread of the disease among the targeted population. These mathematical equations are called differential equation and are only using the concept of rate of change over time.

However, there is several definitions for derivative, and the choice of the derivative used for such a model is very important, because the more accurate the model, the better results will be obtained.  The classical derivative describes the change of rate, but it is an approximation of the real velocity of the object under study. The beta derivative is the modification of the classical derivative that takes into account the time scale and also has a new parameter that can be considered as the fractional order.  

“I have used the beta derivative to model the spread of the fatal disease called Ebola, which has killed many people in the West African countries, including Nigeria, Sierra Leone, Guinea and Liberia, since December 2013,” he said.

The constructed mathematical equations were called Atangana’s Beta Ebola System of Equations (ABESE). “We did the investigation of the stable endemic points and presented the Eigen-Values using the Jacobian method. The homotopy decomposition method was used to solve the resulted system of equations. The convergence of the method was presented and some numerical simulations were done for different values of beta.

“The simulations showed that our model is more realistic for all betas less than 0.5.  The model revealed that, if there were no recovery precaution for a given population in a West African country, the entire population of that country would all die in a very short period of time, even if the total number of the infected population is very small.  In simple terms, the prediction revealed a fast spread of the virus among the targeted population. These results can be used to educate and inform people about the rapid spread of the deadly disease,” he said.

The spread of Ebola among people only occurs through direct contact with the blood or body fluids of a person after symptoms have developed. Body fluid that may contain the Ebola virus includes saliva, mucus, vomit, faeces, sweat, tears, breast milk, urine and semen. Entry points include the nose, mouth, eyes, open wounds, cuts and abrasions. Note should be taken that contact with objects contaminated by the virus, particularly needles and syringes, may also transmit the infection.

“Based on the predictions in this paper, we are calling on more research regarding this disease; in particular, we are calling on researchers to pay attention to finding an efficient cure or more effective prevention, to reduce the risk of contamination,” Dr Atangana said.


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