How Firms Use Income Elasticity of Demand YED

Readers Question: Evaluate the importance of knowing YED in a firm’s decision-making process. Knowing the YED of a product may help a firm respond to changing economic situations and help the firm to plan ahead.   If a firm is producing inferior goods Demand will increase during periods of recessions and economic downturns. Therefore, in …

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List of Countries Energy Use per Capita

A list of energy use (kg of oil equivalent) per capita by country. The list shows a huge disparity between the highest energy users and the lowest. It is worth bearing in mind: Colder countries understandably have a relatively higher use of energy because more resources are devoted towards heating. Energy producers have a high …

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Marginal Analysis in Economics

marginal cost

In economics, marginal analysis means we look at the last unit of consumption/cost. It gives a different picture to the total cost. For example, the total cost of flying a plane from London to New York will be several thousand Pounds. However, with a plane 50% full, the cost of carrying one extra passenger is …

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UK Economy in the 1920s

uk-real-gdp-inflation-1920s

The 1920s are sometimes referred to as the ‘roaring twenties’, but for the UK economy, it was a period of depression, deflation and a steady decline in the UK’s former economic pre-eminence. In the US, the economy boomed on the back of mass production techniques, growing efficiency – and increasingly a credit bubble, which would later contribute to the stock market crash and the great depression. But the UK, tied to the gold standard, the economy experienced a decade of deflation and stagnant growth.

Mass Unemployment in the UK

After the post-war boom of 1919-20 ended, UK unemployment rose sharply to over 10% and stayed high until the Second World War. The unemployment problem was particularly depressing for the many servicemen who returned from the Western front to find a lack of jobs on their return.

1918-38-unemployment-rate

Reasons for Unemployment in the 1920s

  • Lack of demand. Due to contractionary fiscal and monetary policy, there was insufficient demand in the UK economy, leading to stagnant economic growth.
real gdp 1920s
Real GDP stagnant in the 1920s after a deep recession post-war.
  • Efforts to keep Britain in the Gold Standard, and in particular, the decision in 1925 to return to the prewar level of $4.85. This meant UK exports were overvalued,  and also monetary policy had to be kept tighter than necessary (real interest rates very high)
  • Supply-side factors. Postwar, UK industries struggled to make the same productivity gains as competitors such as the US. British industries, which had performed well in the nineteenth century, such as cotton, steel, coal and iron faced difficulties from global oversupply and falling prices. There was a sluggishness in switching resources from these old industries to new growth industries like chemicals, rayon and motor cars. Other supply-side factors included a cut in the average working week and industrial unrest.
  • Real Wage unemployment. Wholesale prices fell by 25 percent between 1921 and 1929. However, falling prices were not matched by falling wages, as understandably, the increasingly unionised labour movements resisted nominal wage cuts. This led to real wage unemployment

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External benefits in housing market

construction-site-house-insulation

Readers Question: Could you please explain how positive externality (external benefit) lead to market failure in property industry? A positive externality occurs when a third party benefits from the production or consumption of a good. In many cases, building the right kind of housing can have benefits to the rest of society. Therefore, the social …

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Is inflation caused by economic growth?

Readers Question: Is rise in prices a reflection of economic growth?

A sustained rise in prices is known as inflation. A large rise in prices / higher inflation rate is often caused by economic growth.

However, there are also occasions, when we can get inflation despite weak or negative economic growth.

Inflation caused by economic growth

Typically, higher inflation is caused by strong economic growth. If Aggregate Demand (AD) in an economy expands faster than aggregate supply, we would expect to see a higher inflation rate. If demand is rising faster than supply this suggests that economic growth is higher than the long run sustainable rate of growth.

For example, in the UK, the long-run trend rate of economic growth is around 2.5%.

If the UK economy expands very rapidly, e.g. economic growth of 5%, then you expect to get inflationary pressures:

  • With high growth, demand rises faster than firms can keep pace with supply; faced with supply constraints, firms push up prices.
  • High growth leads to more employment. Unemployment falls, but this may cause labour shortages. This fall in unemployment puts upward pressure on wages which leads to higher inflation.

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Private, Public and Free Goods defined

free-private-public-good

Definition and explanation of different types of goods Free good – no opportunity cost Private – Good with opportunity cost, rivalry and excludable Public good – non-rivalry, non-excludable Free Good A free good is a good needed by society but available with no opportunity cost. It is a good without scarcity. For example, air is …

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How useful is pareto efficiency?

Readers Question: Pareto efficiency occurs (as you say) ‘when it is impossible to make one party better off without making someone worse off’. Assume (and Economics seems to do this a lot) two people live in the world. One is a multi-billionaire and the other has no money at all. If the rich guy gives …

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