Category: Economics: Ch 21

The Phillips Machine may, in this era of super-computers modelling the economy, appear an outdated artefact. However, when it was first unveiled at the London School of Economics in 1949 it caused a sensation. The Phillips Machine is a model of the economy which uses water, pumps, valves and, in the case of the original, an electric motor scavenged from the windscreen wiper of a Lancaster bomber. For some photos of a Phillips Machine at the Science Museum, follow the links below:

Phillip’s Economic Computer (1949)
Enginuity article (Cambridge Engineering Department)

The computer model that once explained the British economy Guardian (8/5/08)
The computer model that once explained the British economy Guardian (8/5/08) (Cartoon)

Questions

1. Explain what is meant by the term ‘economic model’.
2. What were the limitations of the Phillips machine? Assess whether the Phillips machine could be of value to modern economists.
3. Discuss the value of economic models to policy makers when formulating economic policy.

The prospect of a severe recession in America has inevitably drawn parallels in the media with the Great Depression of 1929. The parallel may not be entirely appropriate in terms of scale and severity, but what lessons are there that can be learnt from the Great Depression?

Credit crunch: risk-taking
Times Online (23/3/08)
America gets depressed by thoughts of 1929 revisited Times Online (23/3/08)
Lessons learnt from Great Depression Times Online (25/3/08)

Questions

1. Explain the principal causes of the Great Depression of the 1930s.
2. Assess the parallels between the current economic situation in America and the situation preceding the Great Depression in 1929.
3. Discuss the extent to which the recent loosening of monetary and fiscal policy in America will help reduce the likelihood of recession.

Rapid economic growth in China has pushed inflation to an 11-year high of 8.7% in February 2008. This was driven significantly by higher food prices, with the price of pork rising by nearly 64%. This higher level of inflation has led to concerns that policy may need to be tightened.

Sweet and sour pork The Economist (13/3/08)
China inflation hits fresh high BBC News Online (11/3/08)
Chinese inflation alarms authorities Guardian (11/3/08)
Chinese warn on decade-high inflation Times Online (5/3/08)
Chinese inflation shoots to 11-year high Times Online (11/3/07)
China tries to apply brakes to economy Guardian (4/3/08)

Questions

1. What are the main causes of rising inflation in China?
2. Assess the extent to which policy needs to be tightened to counter the rising level of inflation in China. What would be the possible downsides of such a policy?
3. Discuss possible policy changes that could be implemented by the Chinese government to reduce the level of inflation.

China’s rate of inflation has hit an 11-year high, partly due to the cold winter weather destroying crops and pushing up food prices. However, inflationary pressure has been growing for some time with rapid economic growth and the resultant pressure on resources. This is despite six increases in interest rates in the past thirteen months.

Families feel pinch as inflation threatens economic miracle Guardian (25/2/08)
Chinese inflation soars to an 11-year high Times Online (20/2/08)
Chinese inflation hits 11 year high Times Online (19/2/08)

Questions

1. Explain the principal factors that have led to the increase in inflation in China.
2. “Policymakers in China will likely try to tighten monetary policy further, with more reserve requirement ratio hikes, faster Chinese yuan appreciation, and more heavy handed controls over bank lending.” Discuss the likely effectiveness of these policy measures.
3. Assess the extent to which changes in food prices will affect the overall level of aggregate demand in the Chinese economy.

Concerns have been growing that the UK faces a downturn in economic growth during 2008. The articles below consider this possibility. With a credit crunch taking place and manufacturing output falling, the concerns for a recession may well not prove unfounded.

Is this the big one? Guardian (3/1/08)
Your survival plan if a recession strikes Times Online (5/1/08)
Top of the flops – 10 pointers to a downturn in 2008 Guardian (6/1/08)
Recession fears as manufacturing drops Times Online (11/1/08)
Crash that ‘won’t happen here’ looms large Guardian (3/12/07)

Questions

1. What are the key indicators of an impending recession?
2. Assess the likelihood of a recession in the UK in 2008.
3. What policies could the UK government adopt to avoid a recession during 2008. What would determine the success of such policies?