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Leakage (economics)

Leakage (economics) is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Leakage (economics) rather than just read about it. In short: In economics, a leakage is a diversion of funds from some iterative process. For example, in the Keynesian depiction of the circular flow of income and expenditure, leakages are the non-consumption uses of income, including saving, taxes, and imports.

Key takeaways

  • Leakage (economics) belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Leakage (economics) to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Leakage (economics) from memory before moving on to harder problems.

Reference excerpt

In economics, a leakage is a diversion of funds from some iterative process. For example, in the Keynesian depiction of the circular flow of income and expenditure, leakages are the non-consumption uses of income, including saving, taxes, and imports. In this model, leakages are equal in quantity to injections of spending from outside the flow at the equilibrium aggregate output. The model is best viewed as a circular flow between national income, output, consumption, and factor payments. Savings, taxes, and imports are "leaked" out of the main flow, reducing the money available in the rest of the economy. Imported goods are one way this may happen, transferring money earned in the country to another one. The simplest possible model of credit creation assumes all loans borrowed from banks in a fractional-reserve banking system are re-deposited to the system. This allows simple calculation of the amount of credit created. In practice, though, cash leakages occur in the form of sums of money borrowed from banks but not re-deposited, and in the form of funds deposited in banks but not lent out. Cash leakage, in this case, lowers the ability of credit creation. Leakage is a common problem involving TNCs (Transnational corporations). Large companies have factories or production facilities in less developed countries, these factories create wealth for the company which is then not transferred to the economy of the host country and instead to that of the corporation involved. The economic value of goods and/or profits lost here is leakage.

See also Carbon leakage – also known as emissions leakage Leakage effect – the loss of tourist revenue from a country

References

Worked examples

Example 1 — a first encounter with Leakage (economics)

Start with the simplest possible case. Write down what Leakage (economics) claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Leakage (economics) before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Leakage (economics) ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Leakage (economics)

In research
Leakage (economics) appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Leakage (economics) in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Leakage (economics) is common in secondary-school and first-year university syllabi. It links to neighbouring topics Economic terminology stubs, Keynesian economics, Monetary economics, so understanding it makes those chapters shorter.
In everyday life
Look for Leakage (economics) outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Leakage (economics) in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Leakage (economics) means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Leakage (economics) out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Leakage (economics) in simple terms?

In economics, a leakage is a diversion of funds from some iterative process. For example, in the Keynesian depiction of the circular flow of income and expenditure, leakages are the non-consumption uses of income, including saving, taxes, and imports.

Why does Leakage (economics) matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Leakage (economics)?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Leakage (economics).

Tags

  • Economic terminology stubs
  • Keynesian economics
  • Monetary economics

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