Hibiscus TeachVocabulary / EconomicsEconomics vocabulary

Economics vocabulary / Lesson 02

Trade, resources & economic power

Follow a resource from the ground to the finished product. Learn fifteen expressions for discussing investment, dependence and the choices behind a resilient economy.

C1•40–50 minutes•15 key expressions

Created by , British English teacher.

01

Turn potential into production

A fictional country discovers a useful mineral. It still needs finance, reliable transport and businesses able to develop more than one source of income.

InvestmentWorking systemsMore sources of income

foreign investment

Money invested in an economy by people or organisations based abroad.

“Foreign investment helped finance the new factory.”

Understand it more deeply

Say it: FOR-eign in-VEST-ment
Capitals show stress; this is a reading guide, not phonetic spelling.

An overseas company may build a factory or buy a stake in a business. Other foreign investors buy financial assets. Investment can bring finance and expertise, but the outcome depends on the terms, the project and how benefits are shared. Foreign investment is not the same as buying imported products.

Use it naturally
attract foreign investment · foreign investors

Check the idea

An overseas firm builds a local factory. Is that simply an import?

Show answer & why

No. It is investment in productive activity in the host economy.

economic diversification

Developing several sources of economic activity and income.

“Tourism and manufacturing could support economic diversification.”

Understand it more deeply

Say it: eco-NOM-ic di-ver-si-fi-CA-tion
Capitals show stress; this is a reading guide, not phonetic spelling.

A country dependent on one export is exposed when its price falls. Developing other viable sectors can spread that risk. Diversification is more than announcing unrelated projects: the new activities need skills, infrastructure, demand and workable business models.

Use it naturally
diversify an economy · reduce dependence on one sector

Check the idea

A country adds three more oil fields. Has it necessarily diversified its economy?

Show answer & why

No. It may still depend on the same sector and price.

infrastructure

The basic systems that allow an economy and society to function.

“Reliable electricity is essential infrastructure for refining.”

Understand it more deeply

Say it: IN-fra-struc-ture
Capitals show stress; this is a reading guide, not phonetic spelling.

Infrastructure includes transport, energy, water and communications systems. A mineral deposit can remain difficult to develop if there are no reliable roads, ports or power supplies. Building infrastructure creates future maintenance needs as well as an initial construction bill.

Use it naturally
invest in infrastructure · strain infrastructure

Check the idea

A mine has valuable ore but unreliable power. What essential support is missing?

Show answer & why

Reliable energy infrastructure.

02

Find the weak link

The mine expands, but only one facility can process its output. A problem at that facility can interrupt every later stage.

MineProcessManufacture

supply chain

The connected stages that bring a product to its users.

“A refinery closure disrupted the supply chain.”

Understand it more deeply

Say it: sup-PLY CHAIN
Capitals show stress; this is a reading guide, not phonetic spelling.

A supply chain includes inputs, processing, manufacturing and distribution, often across several countries. Some links may be easy to replace; others require specialist equipment or skills. Reliable supply depends on how the stages work together.

Use it naturally
disrupt a supply chain · secure supply

Check the idea

Does owning a mine guarantee control of the finished product?

Show answer & why

No. Other firms or countries may control processing, manufacturing or distribution.

bottleneck

The stage that limits the output of the whole process.

“Limited refining capacity became the main bottleneck.”

Understand it more deeply

Say it: BOT-tle-neck
Capitals show stress; this is a reading guide, not phonetic spelling.

Imagine a mine can supply 100 units a day, a refinery can process 40, and a factory can use 80. The refinery limits output to 40. Expanding the mine alone will not remove that constraint. The bottleneck can move after investment improves one stage.

Use it naturally
remove a bottleneck · a processing bottleneck

Check the idea

Which stage limits output: a mine at 100 units, refinery at 40, or factory at 80?

Show answer & why

The refinery, at 40 units per day.

economies of scale

Lower average costs achieved as the scale of production increases.

“Larger plants may benefit from economies of scale.”

Understand it more deeply

Say it: e-CON-o-mies of SCALE
Capitals show stress; this is a reading guide, not phonetic spelling.

A firm can spread fixed costs, such as a factory building, across more units. Buying in larger quantities can also reduce costs. Total spending may rise while cost per unit falls. Large size does not guarantee efficiency; coordination and other problems can eventually increase average costs.

Use it naturally
achieve economies of scale · benefit from scale

Check the idea

A plant costs more in total but less per unit after expansion. Is that consistent with economies of scale?

Show answer & why

Yes. The relevant measure is average cost per unit.

03

Make the business case

A deposit may be technically accessible but expensive to develop. Investors need to consider costs, alternative uses of resources and uncertain selling prices.

What must we give up?Will it pay?What if prices change?

comparative advantage

The ability to produce something at a lower opportunity cost than another producer.

“Comparative advantage can encourage countries to specialise.”

Understand it more deeply

Say it: com-PAR-a-tive ad-VAN-tage
Capitals show stress; this is a reading guide, not phonetic spelling.

Opportunity cost is what you give up by choosing one use of your resources. Country A gives up two units of food to make one machine; country B gives up five. A has a comparative advantage in machines. This concerns relative trade-offs, not simply which country is richer or can produce the most.

Use it naturally
have a comparative advantage in · specialise in

Check the idea

A gives up two units of food per machine; B gives up five. Who has comparative advantage in machines?

Show answer & why

A, because it sacrifices less food for each machine.

commercial viability

The ability of a project to operate successfully under realistic financial conditions.

“Low selling prices threatened the project’s commercial viability.”

Understand it more deeply

Say it: com-MER-cial vi-a-BIL-i-ty
Capitals show stress; this is a reading guide, not phonetic spelling.

Ask whether expected revenue can cover the relevant costs and support continued operation over time. A mineral can exist underground without being profitable to extract. Commercial viability is a financial judgement; a government may also consider security, environmental or social benefits.

Use it naturally
assess commercial viability · commercially viable

Check the idea

A project has valuable resources but cannot cover its costs at plausible prices. Is it commercially viable?

Show answer & why

Not on those assumptions. Resource quality alone does not establish viability.

price volatility

The extent to which prices fluctuate over time.

“Price volatility makes long-term investment harder to plan.”

Understand it more deeply

Say it: PRICE vol-a-TIL-i-ty
Capitals show stress; this is a reading guide, not phonetic spelling.

Volatile prices move substantially or unpredictably. They do not simply move upwards. A producer can struggle when prices fall, while a manufacturer can struggle when input prices rise. Long-term contracts may reduce exposure, although their protection depends on the terms.

Use it naturally
high price volatility · exposure to volatility

Check the idea

A price repeatedly jumps and falls. Which term captures that pattern?

Show answer & why

Price volatility, rather than simply inflation.

04

Decide what government should support

A fictional government offers support for a domestic refinery. Support could build a useful capability, but the public also needs a clear account of its cost and purpose.

SupportConditionsPublic outcome

subsidy

Financial support that lowers costs or increases returns for a chosen activity.

“The government offered a subsidy for domestic production.”

Understand it more deeply

Say it: SUB-si-dy
Capitals show stress; this is a reading guide, not phonetic spelling.

A subsidy can take forms such as a grant or favourable financial treatment. It may help build capacity, protect jobs or support a public goal. It can also benefit projects that remain inefficient. Ask who receives support, who pays, and what measurable outcome is required.

Use it naturally
provide a subsidy · subsidise production

Check the idea

A government grant helps a refinery cover costs. What is this support called?

Show answer & why

A subsidy.

industrial policy

Government action intended to develop selected industries or capabilities.

“Industrial policy supported training and new processing facilities.”

Understand it more deeply

Say it: in-DUS-tri-al POL-i-cy
Capitals show stress; this is a reading guide, not phonetic spelling.

Tools can include research funding, training, procurement, infrastructure and subsidies. Industrial policy is broader than one payment to one company. A useful discussion weighs the capability gained against costs, implementation risks and the treatment of competing businesses.

Use it naturally
pursue industrial policy · build industrial capability

Check the idea

The state funds technical training, research and procurement in one sector. Is that broader than a subsidy?

Show answer & why

Yes. These measures form an industrial-policy programme.

strategic dependence

Reliance on an outside source for something important to national goals or security.

“Dependence on one processor created strategic dependence.”

Understand it more deeply

Say it: stra-TE-gic de-PEND-ence
Capitals show stress; this is a reading guide, not phonetic spelling.

Some imports are easy to replace; others are essential and have few substitutes. Dependence becomes strategically significant when disruption or pressure could prevent important decisions or activities. It does not mean that every imported product creates the same risk.

Use it naturally
reduce strategic dependence · dependence on a single supplier

Check the idea

Two imports come from abroad. One has many substitutes; one has none. Are the risks necessarily equal?

Show answer & why

No. Importance, concentration and the availability of substitutes affect the risk.

05

Choose which risk is worth paying for

The cheapest supplier may be highly concentrated. Alternatives can cost more, but they may allow production to continue during disruption.

Diversified supplyRoom to recoverMore freedom to decide

resilience

The ability to withstand disruption, adapt and recover.

“Several independent suppliers improved supply-chain resilience.”

Understand it more deeply

Say it: re-SIL-i-ence
Capitals show stress; this is a reading guide, not phonetic spelling.

Resilience can come from alternative suppliers, stocks, spare capacity, recycling or adaptable production. It does not promise that nothing will go wrong. Nor does it require producing everything domestically. Alternatives must be genuinely usable and not share the same hidden dependency.

Use it naturally
build resilience · a resilient supply chain

Check the idea

Three suppliers all rely on the same refinery. Is the supply necessarily resilient?

Show answer & why

No. The common refinery remains a shared point of failure.

geopolitical leverage

Influence over other countries created by a position of strategic importance.

“Control of essential processing can create geopolitical leverage.”

Understand it more deeply

Say it: ge-o-po-LIT-i-cal LEV-er-age
Capitals show stress; this is a reading guide, not phonetic spelling.

If another country needs a material you can restrict, that dependence may strengthen your negotiating position. Leverage is potential influence, not proof that control will always be used or will always succeed. Buyers can seek substitutes, stockpiles or new partners.

Use it naturally
gain leverage · use leverage · bargaining power

Check the idea

Can control of an essential input affect negotiations even before exports are restricted?

Show answer & why

Yes. The possibility of disruption can itself affect bargaining.

strategic autonomy

The ability to make important choices without unacceptable external dependence.

“Reliable partnerships can support strategic autonomy.”

Understand it more deeply

Say it: stra-TE-gic au-TON-o-my
Capitals show stress; this is a reading guide, not phonetic spelling.

Autonomy concerns the freedom to act. It need not mean isolation or complete self-sufficiency. A country may improve autonomy through trusted partnerships and several suppliers. The aim is to prevent an external dependency from removing important options.

Use it naturally
strengthen strategic autonomy · preserve room to act

Check the idea

Can international partnerships help strategic autonomy?

Show answer & why

Yes, if they reduce unacceptable dependence and preserve meaningful choices.

Make the connection

Try it: where should capacity increase?

Adjust the fictional daily capacity of each stage. Assume every unit must pass through all three stages, with no losses or inventories.

The smallest capacity limits the chain. Improve that stage before assuming that more capacity elsewhere will help.
Keep the meaning precise

Three distinctions for a stronger argument

Resource ≠ capability

Having a deposit does not mean having the facilities and skills to process it.

Efficiency ≠ resilience

Low normal operating costs and the ability to survive disruption are different measures.

Diversification ≠ self-sufficiency

Several reliable suppliers can reduce dependence without producing everything at home.

Your final speaking task

Recommend a supply strategy

A fictional manufacturer buys 80% of a crucial input from one supplier. An independent alternative costs 15% more. Give a 90-second recommendation using four target expressions. Include one benefit, one cost and one question that needs evidence.

Listen back and check
  • Use four target expressions.
  • Explain a cost and a benefit.
  • Identify a hidden dependency or missing fact.
Read a model response

I would diversify part of the supply chain to improve resilience and reduce strategic dependence. The alternative costs more, so I would check whether it is commercially viable for our products. I would also verify that both suppliers do not use the same processing bottleneck. Diversification would reduce risk, although it would not remove it entirely.

Bring it together

Your mastery check

Choose an answer for each question. Aim for 9 out of 12, then read the feedback and revisit any uncertain ideas.

Open the 12-question quiz
01 Which is foreign investment?
02 An oil economy develops viable software and agricultural exports. This is…
03 Which is infrastructure?
04 A mine handles 90 units, a refinery 30, and a factory 70. The bottleneck is…
05 Economies of scale concern a fall in…
06 Comparative advantage is based on…
07 An attractive deposit has no realistic route to covering its costs. What is doubtful?
08 Sharp price increases and decreases both illustrate…
09 A grant to support a domestic refinery is a…
10 Training, research funding and targeted procurement together illustrate…
11 Three suppliers share one essential processor. What should you investigate?
12 Which statement best describes strategic autonomy?

Use the language in a full lesson

Take the next step

Use Lesson 1 to connect national growth with everyday living standards. Open the vocabulary lesson

Sources & learning notes

The examples, numbers and countries described as fictional are teaching examples. The links below support the economic concepts; the lesson does not report current economic conditions. Audio uses a synthetic British English voice.