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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

Research eradicates bacteria from avocado facility
2017-01-17

 Description: Listeria monocytogenes Tags: Listeria monocytogenes

Listeria monocytogenes as seen under an electron
microscope. The photo was taken with a transmission
electron microscope at the microscopy unit of the UFS.
Bacteriophages (lollipop-like structures) can be seen
next to the bacterial cells.
Photo: Supplied

“The aim of my project was to identify and characterise the contamination problem in an avocado-processing facility and then to find a solution,” said Dr Amy Strydom, postdoctoral fellow in the Department of Microbial Biochemical and Food Biotechnology at the University of the Free State (UFS).

Her PhD, “Control of Listeria monocytogenes in an Avocado-processing Facility”, aimed to identify and characterise the contamination problem in a facility where avocados were processed into guacamole. Dr Strydom completed her MSc in food science in 2009 at Stellenbosch University and this was the catalyst for her starting her PhD in microbiology in 2012 at the UFS. The research was conducted over a period of four years and she graduated in 2016. The research project was funded by the National Research Foundation.

The opportunity to work closely with the food industry further motivated Dr Strydom to conduct her research. The research has made a significant contribution to a food producer (avocado facility) that will sell products that are not contaminated with any pathogens. The public will then buy food that is safe for human consumption.


What is Listeria monocytogenes?

Listeria monocytogenes is a food-borne pathogenic bacterium. When a food product is contaminated with L. monocytogenes, it will not be altered in ways that are obvious to the consumer, such as taste and smell. When ingested, however, it can cause a wide range of illnesses in people with impaired immune systems. “Risk groups include newborn babies, the elderly, and people suffering from diseases that weaken their immune systems,” Dr Strydom said. The processing adjustments based on her findings resulted in decreased numbers of Listeria in the facility.

The bacteria can also survive and grow at refrigeration temperatures, making them dangerous food pathogens, organisms which can cause illnesses [in humans]. Dr Strydom worked closely with the facility and developed an in-house monitoring system by means of which the facility could test their products and the processing environment. She also evaluated bacteriophages as a biological control agent in the processing facility. Bacteriophages are viruses that can only infect specific strains of bacteria. Despite bacteriophage products specifically intended for the use of controlling L. monocytogenes being commercially available in the food industry, Dr Strydom found that only 26% of the L. monocytogenes population in the facility was destroyed by the ListexP100TM product. “I concluded that the genetic diversity of the bacteria in the facility was too high and that the bacteriophages could not be used as a control measure. However, there is much we do not understand about bacteriophages, and with a few adjustments, we might be able to use them in the food industry.”

Microbiological and molecular characterisation of L. monocytogenes

The bacteria were isolated and purified using basic microbiological culturing. Characterisation was done based on specific genes present in the bacterial genome. “I amplified these genes with polymerase chain reaction (PCR), using various primers targeting these specific genes,” Dr Strydom said. Some amplification results were analysed with a subsequent restriction digestion where the genes were cut in specific areas with enzymes to create fragments. The lengths of these fragments can be used to differentiate between strains. “I also compared the whole genomes of some of the bacterial strains.” The bacteriophages were then isolated from waste water samples at the facility using the isolated bacterial strains. “However, I was not able to isolate a bacteriophage that could infect the bacteria in the facility.

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