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Monday, 27 February 2017

Theme 4: Transfer Earnings & Economic Rent

Economic rent is any amount earned by a factor of production, such as labour, above the minimum amount they require to work in a current occupation
Transfer earnings are the minimum reward required to keep factors of production, such as labour, in its current occupation.
Diagram showing transfer earnings and economic rent at the market equilibrium wage rate.

When the labour supply is inelastic, then more of the reward to labour will be economic rent rather than transfer earnings.



Theme 3: The Principal - Agent problem

Here is a short video explaining the 'Principal-Agent problem

Theme 4 and paper 3: An exemplar essay on the Chinese Economy

Essay: The state of the Chinese economy – an overview

Between 2011 and 2013 China poured 6.6 gigatons of cement – more than the amount used by the USA during the entire 20th century. That single statistic encapsulates both the successes and failures of 21st Century China.

On the one hand you have the unprecedented levels of supply side investment building up the capital stock and fueling growth. Yet on the other hand you have the excess that has lead to serious concerns.

One fundamental success of the modern Chinese story has been growth. Since 2009 alone its economy has more than doubled in size, and it has increased 11 times over since 1998 to grow to $11.01 trillion in 2015. It is claiming an increasing share of world output (as measured by GDP). Adjusted for purchasing power parity, China has overtaken the USA to account for a 17.65% share, the worlds largest. The nation has accounted for 1/3 of global growth this millennium.
China's centrality to the global economy consequently gives it huge influence around the world; it has a big voice in institutions like the UN (as a permanent member of the Security Council) and the World Bank, and also has significant leverage when brokering trade deals – access to Chinese markets and capital is increasingly attractive. China is currently negotiating 9 different bi-lateral trade deals with countries from the Maldives to Norway and existing deals with dozens of others. This is one example of the positive multiplier effect of growth, as these trade deals lay the foundations for further growth.

You can evaluate this by saying that this growth has come at a cost – China has some of the worst environmental problems in the world. According to the world bank 53 billion tonnes of untreated industrial and household sewage make there way into China’s waterways, 70% of which are affected. The situation has gotten so bad that China will face water scarcity by 2030 unless serious interventions are undertaken, with 300 million people already without access to safe water. Substances from cadmium to arsenic have been found in river water. Although anti-pollution laws exist, in many regions they are lightly enforced with businesses often given significant leeway due to their economic importance.

In response China has committed $625 billion to better managing the environment, but considering the range of issues it faces this may not be enough. To water scarcity, you can add; desertification, overgrazing, soil salinization, soil erosion a loss of biodiversity and air pollution. Many of these challenges have arisen due to increasingly intensified farming practices that are required to feed China’s ever-growing population., particularly the middle classes that are now demanding far more meat than the Chinese agricultural system was ever expected to produce. As animal farming is far more land and water intensive than crop farming, these problems are more likely to get worse than better.

Air pollution is a particularly salient issue in China. It is home to 16 of the worlds 20 most polluted cities and leads the world in smog-related respiratory and cardio-vascular disease deaths. 25.5 million tonnes of acid rain falls every year, thanks to the sulfur dioxide and black carbon that pours out of China’s thousands of coal fired power stations (provide 70% of total power) and steel/chemical plants.

More people own a car in China than ever before and that has been the major contribution in the last two decades, with exhaust emissions added to an already toxic mess. Beijing suffered major public relations damage in the run-up to the 2008 Olympics over concerns surrounding the Beijing smog, and air quality concerns could become a road-block to further events of this magnitude. The contribution to global warming is also of great concern, as is the burden of the pollution related disease on the economy.

As the Chinese economy ages, its workforce will become sicker and it does not need the extra burden of workers missing days and needing hospital care.

https://s3-eu-west-1.amazonaws.com/tutor2u-media/subjects/economics/shutterstock_426844309.jpg
It is also leveraging this growth into broadening its soft power. It has the third most voting power in both the World Bank and the IMF – evidence of the dividends of this is the decision by the IMF to make the renminbi a part of the Special Drawing Rights basket of currencies, a major step in the renminbi's rise to global reserve currency status. Not satisfied with influencing existing institutions, China has founded the Asian Infrastructure Investment Bank, which many have touted as a rival to the World Bank. With the combined weight of 21 Asian nations behind it and free from US or UN influence, the bank has attracted western support from the likes of the UK and the USA.

The bank fits neatly into the Chinese Governments biggest project 'The New Silk Road' which is designed to increase trade with Eurasia and Africa. China has been investing billions in East Africa over the last 20 years, with $26 billion spent in 2013 alone, mostly in resource exploitation, but returns are limited by the poor capital stock of the region. The same Is true across much of central Asia. China is more familiar than any country of the power of supply side investment, so is happy to lend money and expertise, safe in the knowledge that they would share directly in the benefits of improved access and smoother supply chains, as well as closer ties with grateful governments. Perhaps the best indicator of China's soft power success was the USA's refusal to join the AAIB, perhaps out of wariness of China's increasing sway.

Another, perhaps under-appreciated success of modern China has been the major rise in living standards. Relative to the USA, China was on a par with India in the early 1990s with just 5% of US GDP per capita (PPP). It is now overtaking Brazil, the one-time darling of development economists, and is approaching the 30% mark, a significant improvement in such as short space of time. Through large scale urbanization and growth China has reduced the poverty rate (measured as living on less than $1.25 a day) from 85% in 1981 to 27% in 2004, emancipating over 600 million people, with millions more escaping poverty since.

This increased wealth is most apparent in the 300 million strong middle class that could double by 2021. A larger middle class means that China has begun to rebalance its economy away from the cheap unit labour cost exports of the past, into a powerful tertiary sector founded upon domestic demand. The future of China looks less like FoxConn and more like Baidu.

Statistic: China: growth rate of real gross domestic product (GDP) from 2010 to 2021 | Statista
Whilst total poverty may have fallen, relative income inequality has in fact worsened. A rising tide may lift all boats, but is does not lift them equally. The One-Child policy reinforced existing gender inequality, with men still having a significant advantage over women through all stages of life. Rapid urbanization has also created a growing gap between rural and urban populations, with government investment on infrastructure and services focused on population centres. The differences between Shanghai and an interior farming region are now extremely acute, which in the long run could lead to social and political tension. China’s Gini coefficient has risen far and fast, from 0.3 in the 1980s to 0.53 2013. The continued health of the one party system could be called into question if growth falters and the middle and working classes see their living standards stop rising.

Finally, China in recent years has made big progress in diversifying its economy as it matured. The image of China as low quality manufacturing hub filled with sweatshops is now woefully outdated. Thanks to the agglomeration effects of the Special Economic Zones first created in the 80's, China has become a centre of innovation and economic complexity. It is at the forefront of mobile technology, with brands like Huawei and China Mobile recognised the world over. These corporations have huge international presence with Huawei alone investing $1.5 Billion in Africa over the last 20 years.

By becoming a more multi-faceted economy that was less dependent of exporting cheap manufactured goods to the West, China is better placed to absorb exogenous shocks. It was notable that China did not suffer as badly as many other major economies during the 2008 financial crisis (admittedly in part due to a strong fiscal stimulus plan).

While private companies may be thriving in the new China, state-owned enterprises are not doing as well. Like many SOEs, they struggle with x-inefficiency and without a profit motive they do not contribute to the innovation that would provide China with a competitive advantage in global trade. This is arguably seen in the well-earned reputation of SOE’s for having no respect for foreign intellectual property laws, as the SOE’s cannot develop their own ideas. Consequently, they hold back the economy, cornering parts of the economy the private sector could take further, as well as capturing the skilled workers in secure, well payed government jobs when their talents would be better exercised in a more competitive environment. It is also true that returns to investment are falling in China as the economy becomes steadily more leveraged. Areas of rapid growth are becoming fewer and further between (hence the expansion into East Africa) and household debt to GDP has more than doubled in ten years. The shock of the Shanghai stock crash of 2015 has lead to growing fears that Chinese economy is more fragile than previously thought. Its latest boom certainly bears the hallmarks of a crash waiting to happen; a large housing bubble and an overleveraged population.

In the short run, China appears to be a great success; combining rapid growth with poverty reduction, political stability and increased global standing. Yet in the long run its challenges are at risk of overwhelming it. The burden of an ageing, unbalanced population, the risk of the middle income trap, environmental issues and an over-leveraged economy is a potent cocktail of problems that threatens the long-term economic success and political stability.

Johnny Wallace


Sunday, 26 February 2017

Theme 4: Kenyan railroads and living standards

An excellent developmental story coming out of Kenya. The clip highlights the way in which the development of infrastructure can be associated with improved living standards in all sorts of ways. 

Not only is the transformative effect of the railway corridor for the Kenyan economy highlighted, but the improved living standards for those who live alongside its tracks is also made clear.


Theme 2 & 4: Short answers - savings and growth

A high gross domestic saving rate usually indicates a country's high potential to invest in capital. State two factors that affect the gross savings rate for a country. Explain how a rise in gross savings might not necessarily lead to a rise in a country’s growth rate.




State two factors that affect the gross savings rate for a country
The gross savings rate is total savings by accumulated by domestic households, businesses and government measured as a share of GDP.
Two fundamental factors that determine the gross savings rate are:
  1. The level of real GNI per capita measured at PPP - when extreme poverty is widespread, the majority of households cannot afford to save and corporate profits are limited by size of aggregate demand
  2. The fiscal position of the government - i.e. whether a government is able to run a fiscal surplus and therefore build up savings in the public sector
Explain how a rise in gross savings might not necessarily lead to a rise in a country’s growth rate
The Harrod-Domar growth model links a rise in gross savings to an increase in the size of the capital stock and a subsequent increase in a nation’s trend growth rate.
In this model: the rate of growth of GDP = Savings ratio / capital output ratio.
But an increase in gross savings does not automatically translate into faster growth:
  1. Weaknesses in human capital will limit the gains from an increase in the stock of capital per worker; there might be significant time lags between increased investment and a rise in factor productivity
  2. Financial markets in emerging countries may not channel the rise in savings into productive investments, this is especially true for countries with high rates of corruption and less sophisticated equity and bond markets

Theme 3: Multiple Choice - Business Objectives




What is the difference between sales maximisation and sales revenue maximisation?
  • Sales maximisation occurs when a business supplies the largest output possible consistent with earning at least normal profits.
  • This happens at an output level when average revenue = average cost (or price per unit = AC)
  • With sales revenue maximisation a business will expand their output to a level where marginal revenue = zero,
  • This is at the mid-point of a linear demand curve and where the co-efficient of price elasticity of demand = 1
Explain how a decision to maximise sales revenue rather than profits might affect producer and consumer welfare
  • Sales revenue is maximised when MR=zero whereas profits are maximised when MR=MC
  • Revenues are maximised at a higher output and a lower price and will will affect producer and consumer welfare
  • Using an analysis diagram, we can show that consumer surplus will be higher because of the lower price.
  • But producer surplus will be lower and revenue maximisation leads to a reduction in supernormal (or abnormal) profit.
  • Overall, economic welfare is likely to be greater if a business aims to maximise revenue rather than profit

Theme 2 & 4: Negative interest rates

In some Euro Zone countries, both the nominal and real interest rate has become negative. Using a numerical example, distinguish between nominal and real interest rates.Explain how negative interest rates might impact on two macroeconomic objectives.




Using a numerical example, distinguish between nominal and real interest rates
  • Nominal interest rates are the money rates of interest on savings and loan products.
  • The real interest rate = the money rate of interest minus the inflation rate.
  • For example, if the nominal yield on a 10 year UK government bond is 0.6% and the 10-year expected inflation rate is 1.6% then the real yield on the bond = -1%.
Explain how negative interest rates might impact on two macroeconomic objectives
Negative policy rates apply at the moment in some countries (e.g. Japan, Sweden, Denmark and Switzerland)
Negative interest rates are designed to get commercial banks lending because they will pay the central bank interest for holding money on deposit with them.
Negative rates may also bring about a reduction in real interest rates – which might in turn stimulate increased business investment and help an economy escape a liquidity trap and return to stronger economic growth
Negative rates are partly designed to cause an outflow of hot money thereby depreciating the exchange rate.
This will help to improve the trade balance (if the Marshall Lerner condition holds) and therefore stimulate aggregate demand and short-term economic growth.

Theme 1 & 3: The Tragedy of the Commons

The stock of natural capital in many countries is under threat from the tragedy of the commons. What is meant by the tragedy of the commons? Explain one strategy for protecting natural capital.


Theme 2 & 4: Monetary Policy - Interest rates

This is a short primer video on interest rates. Students often write in exams about "the interest rate" when in fact no such interest rate exists! There are tens of thousands of different interest rates on savings and loans, the vast majority of which are set by market forces without direct central bank intervention.


All themes: Short answer questions revision

Thursday, 16 February 2017

Theme 3: Supermarkets, competition and oligolopy

I just read this interesting article on UK supermarkets. It highlights how the different ways of competing affect the perception and demand for their goods and services.

Useful when discussing/evaluating price Vs non-price competition. For example, ASDA's prodce is only seen as 'average', but this has not really effected sales in these difficult economic times!

Wednesday, 15 February 2017

Theme 1: Reducing negative externalities and using resources more efficiently

An interesting clip that touches upon at least two negative externalities.
Because of changing soil conditions, Taiwanese farmers have switched from producing crops - presumably because of environmental degradation - to using the sites to generate renewable energy - and reducing the negative externalities associated with less environmentally-friendly methods of energy production.

Tuesday, 14 February 2017

Theme 3: Price Discrimination: Airports and car parking

A clear example here of seasonal price discrimination by many of Britain's biggest airports.

The Independent compared prices for a week’s parking at Britain’s top 10 airports on a range of dates over the coming year and found that Manchester and Gatwick raise their charges by as much as half. Birmingham airport charges 57 per cent more during April, which includes the Easter holidays, than in March.
Naturally the airports justify their price hikes by saying that prices are rising to balance seasonal demand with a fixed capacity of car parking spaces. They claim to offer off-peak discounts at other times but this will do little to assuage the anger of families who are already paying more for their half term and termly holiday breaks as holiday companies increase prices at popular times of the year.
According to the Independent, car parking rates at Stansted, Glasgow and Newcastle remain constant. Heathrow has a weekly rate of £73 for the Terminal 5 long-stay car park almost year-round.

Monday, 13 February 2017

Theme 4: Essay Example on international competitiveness

All Themes: Exam Technique: How to answer the new spec questions

Theme 2 & 4: Demand Management Policies

In today's lesson you will be split into 4 groups. Each group will look at the same issue but use either fiscal or monetary policy to solve the problem.

Group 1 & 2: The UK economy is in a deep recession. Using fiscal policy, evaluate measures the UK government could use to achieve its macro-economic objectives (25 marks)

Group 3 & 4: The UK economy is in a deep recession. Using monetary policy, evaluate measures the UK government could use to achieve its macro-economic objectives (25 marks)

You will present your findings to the other group tomorrow and then to the whole class.

Two useful presentations on demand management to help you:
 

Thursday, 9 February 2017

Theme 4: Sweden and the 6 hour working day

Sweden has been experimenting with six-hour days, with workers getting the chance to work fewer hours on full pay, but now the most high-profile two-year trial has ended - has it all been too good to be true?

Click here to read the article discussing the results.


Sunday, 5 February 2017

Theme 4: Economic Growth Vs Economics Development

A really simple and useful clip on the difference between the two measures. Essential when discussing economic development. Question for discussion: Would you count the UAE as economically developed?

Theme 4: Comparative Advantage - China and the ball point pen!

This is a vivid illustration of the growth challenges facing China as it seeks to move away from "Assembled in China" to "Designed and Made by China."
China manufacturers nearly 40 billion ballpoint pens a year (the video is a brilliant clip on economies of scale) but it has taken them years to master the manufacturing of one absolutely key component part!


Wednesday, 1 February 2017

Theme 2 & 4: Consumption as part of Aggregate Demand

You must read and make notes on this presentation. I will be asking you questions on this in the next lesson!

All Themes: Past papers with mark schemes

I have just stumbled across this website which has answers to essays from way back....useful for revision, as the questions are not dissimilar to what you might get this year.

Click here to access.

Theme 4: Globalisation - A must read/watch

Protests against Globalisation have become increasingly common
Millions around the globe may have taken to the streets in recent years to protest against the impact of globalisation on their jobs and communities - but this backlash is only likely to grow as globalisation itself becomes more disruptive. Click here for the article that looks at whether globalisation will take your job!

Interesting stuff!