Posts Tagged ‘Monetary Policy’

Have Central Bankers’ got it wrong?

October 30, 2017 Leave a comment

Below is very good video from the FT – here are the main points:

  • Central Banks – by lowering interest rates they could make savings less attractive and spending more attractive
  • After GFC low interest rate and asset purchases increased lending and avoided a global depression.
  • Now the world economy is not behaving as the central bankers’ said it would
  • Their theory was that with lose credit (lower interest rates) the economy would grow and inflation would rise.
  • Inflation is stagnant (unlike the 1960’s – see graph below) and this is worrying as a little inflation is required to lubricate the economy. It allows prices to fall in real terms.
  • The missing inflation may mean that the bankers’ theories are wrong.
  • Cheap money may have encouraged high asset prices and debt levels but it may undermine the economy without doing much for growth.

Inflation Unemployment.png


A2 Revision – New Classical to Extreme Keynesian

October 27, 2017 Leave a comment

The main competing views of macroeconomics (Keynesian vs Monetarist) is part of Unit 5 in the A2 syllabus and is a popular topic in the essay and multiple-choice papers. Begg covers this area very well in his textbook. In looking at different schools of thought it is important to remember the following:

Aggregate Demand – the demand for domestic output. The sum of consumer spending, investment spending, government purchases, and net exports
Demand Management – Using monetary and fiscal policy to try to stabilise aggregate demand near potential output.
Potential Output – The output firms wish to supply at full employment after all markets clear
Full Employment – The level of employment when all markets, particularly the labour market, are in equilibrium. All unemployment is then voluntary.
Supply-side policies – Policies to raise potential output. These include investment and work incentives, union reform and retraining grants to raise effective labour supply at any real wage; and some deregulation to stimulate effort and enterprise. Lower inflation is also a kind of supply-side policy if high inflation has real economic costs.
Hysteresis – The view that temporary shocks have permanent effects on long-run equilibrium.

There are 4 most prominent schools of macroeconomics thought today.

New Classical – assumes market clearing is almost instant and there is a close to continuous level of full employment. Also they believe in rational expectations which implies predetermined variables reflect the best guess at the time about their required equilibrium value. With the economy constantly near potential output demand management is pointless. Policy should pursue price stability and supply-side policies to raise potential output.

Gradualist Monetarists – believe that restoring potential output will not happen over night but only after a few years. A big rise in interest rates could induce a deep albeit temporary recession and should be avoided. Demand management is not appropriate if the economy is already recovering by the time a recession is diagnosed. The government should not fine-tune aggregate demand but concentrate on long-run policies to keep inflation down and promote supply-side policies to raise potential output.

Moderate Keynesians – believe full employment can take many years but will happen eventually. Although demand management cannot raise output without limit, active stabilisation policy is worth undertaking to prevent booms and slumps that could last several years and therefore are diagnosed relatively easily. In the long run, supply-side policies are still important, but eliminating big slumps is important if hysteresis has permanent effects on long-run equilibrium. New Keynesians provide microeconomics foundations for Keynesian macroeconomics. Menu costs may explain nominal rigidities in the labour market.

Extreme Keynesians – believe that departures from full employment can be long-lasting. Keynesian unemployment does not make real wage fall, and may not even reduce nominal wages and prices. The first responsibility of government is not supply-side policies to raise potential output that is not attained anyway, but restoration of the economy to potential output by expansionary fiscal and monetary policy, especially the former.

Types of Macroeconomic Policies

August 30, 2017 Leave a comment

Just been doing some revision with my CIE AS class and discovered this diagram on macro policies. Mind maps like this are very useful ways of revising topics.

Fiscal policy can be distinguished from monetary policy, in that fiscal policy deals with taxation and government spending and is often administered by an executive under laws of a legislature, whereas monetary policy deals with the money supply, lending rates and interest rates and is often administered by a central bank.

Supply-side policies are mainly micro-economic policies aimed at making markets and industries operate more efficiently and contribute to a faster underlying-rate of growth of real national output

Macro Policies.png

Reserve Bank of Australia – Neutral Rate

August 20, 2017 Leave a comment

An article in the Sydney Morning Herald last month looked the Reserve Bank of Australia (RBA) and the neutral interest rate. For almost a year the RBA has kept Australia’s official interest rate at 1.5% and uses this instrument to control the overnight cash rate to try to manage the economic activity of an economy. EG.

Expansionary = Lower interest rates = encourages borrowing and spending
Contractionary = Higher interest rates = slows the economy down with less spending

How do we know that 1.5% is either expansionary or contractionary? Central banks indicate what they believe is the neutral rate of interest – this is a rate which is defined as neither expansionary or contractionary. In Australia the neutral is estimated to have fallen from 5% to 3.5% since the GFC. RBA deputy governor, Dr Guy Debelle, explains that the neutral rate aligns the amount of nation’s saving with the amount of investment, but does so at a level consistent with full employment and stable inflation. In Australia this equates to 5% unemployment and 2-3% inflation.

Aus - Neutral rate

The level of a country’s neutral interest rate will change with changes in the factors that influence saving and investment.

More saving will tend to lower interest rates
More investment will tend to increase interest rates

Debelle indicates that you can group these factors into 3 main categories:

1.The economy’s ‘potential’ growth rate – the fastest it can grow without impacting inflation.
2. The degree of ‘risk’ felt by households and firms. How confident do they feel about investing. Since the GFC people are more inclined to save.
3. International factors – with the free movement of capital worldwide global interest rates will influence domestic interest rates.

“We don’t have the independence to set the neutral rate, which is significantly influenced by global forces. But we do have independence as to where we set our policy rate relative to the neutral rate.” Dr Guy Debelle

A2 Economics – Keynesians vs Monetarists

March 29, 2017 Leave a comment

Just been going through this part of the course with my A2 class and came across a table from some old A Level notes produced by Russell Tillson (ex Epsom College Economics and Politics Department) to help them understand the principal differences.

Monetary policy – not too tight in New Zealand?

October 26, 2016 Leave a comment

Brian Fallow of the New Zealand Herald wrote a very informative article on the inflationary target that the Reserve Bank of New Zealand keeps missing – the CPI has been below the bottom of the bank’s 1 to 3% target band. Some will say that the RBNZ has been too tight with its monetary policy stance – maintaining high interest rates for too long. Assistant Governor John McDermott has defended the bank’s position for the following reasons:

  1. Nearly half the CPI consists of tradables where the price of goods is impacted by competition from outside New Zealand. For the last four years the global economy has been in a disinflationary environment caused by excess supply and in particular low commodity prices especially oil. Year ending September 2016 Tradables = -2.1%. This offset almost all of the +2.1% rise in non-tradables prices. See graph below.
  2. The recovery form the GFC has been quite weak and with the NZ$ strengthening (imports cheaper) accompanied by lower world prices has meant that import prices have been very low.
  3. The growth of the supply-side of the economy has been particularly prevalent which again has led to less scarcity and lower prices.
  4. Recent years has seen immigration boost the demand side of the economy but because the age composition is between 15-29 rather than 30-40 in previous years, the former has a much less impact on demand as they don’t tend to have the accumulated cash for spending.
  5. The RBNZ reckon that the output gap is now in positive territory (actual growth being higher than potential growth) which will start to put pressure on prices as capacity constraints become more prominent.
  6. Statistically with a weak inflation rate in the December 2015 quarter the December 2016 quarter is most likely to be higher as the percentage change is taken on the CPI of the previous year.


The spectre of deflation hitting the New Zealand economy does not seem to be a concern at this stage especially with the longer-term inflationary expectations being in the mid range of the target bank i.e. 2%.

Monetary Policy needs help

September 28, 2016 Leave a comment

In the 1970’s and 1980’s the global economy was battling the menace of stagflation – high inflation and high unemployment. In order to counteract this, monetary policy was seen as responsible for controlling the inflation rate through the adoption of targeting. The New Zealand government was the first country to introduce this through the Reserve Bank Act 1989 which gave the responsibility of the central bank to keep inflation between 0-2% (later changed to 1-3%). Monetary policy should therefore play the lead role in stabilizing inflation and unemployment with fiscal policy playing a supporting role with automatic stabilisers –  economic stimulus during economic downturns and economic contractions during high growth periods. Fiscal policy is therefore focused on long term objectives such as efficiency and equity.

In the post financial crisis world the usefulness  of monetary policy is dubious. The natural rate of interest has now dropped to historical low levels. The natural rate of interest being a rate which is neither expansionary or contractionary. The issue for the central banks is how to bring about a stable inflation rate when the natural rate of interest is so low.

Historical Natural Rates of Interest 


In the 1990’s the natural rate of interest globally was approximately between 2.5% and 3.5% but by 2007 these rates had decreased to between 2 – 2.5% – see graph. By 2015 the rate had dropped sharply and as can be seen from the graph near zero in the USA and below zero in the case of the euro zone. The reasons for this decline in the natural rate were related to the global supply and demand for funds:


  • Shifting demographics and the ageing populations
  • Slower trend productivity and economic growth
  • Emerging markets seeking large reserves of safe assets
  • Integration of savings-rich China into the global economy
  • Global savings glut in general

Therefore the expected low natural rate of interest is set to prevail when the economy is at full capacity and the stance of monetary policy in neutral. However this lower rate means that conventional monetary has less ammunition to influence the economy and this will mean a greater reliance and other unconventional instruments – negative interest rates. In this new environment recessions will tend to be more severe and last longer and the risks of low inflation will be more likely.

Future strategies by to avoid deeper recessions.

Governments and central banks need to be a lot more creative in coping with the low natural rate environment. Fiscal policy could be used in conjunction with monetary policy with the aim of raising the natural rate. Therefore long-term investments in education, public and private capital, and research and development could be more beneficial. More predictable automatic stabilisers could be introduced that support the economy during boom and slump periods. Additionally unemployment benefit and income tax rates could be linked to the unemployment rate. The reality is that monetary policy by itself is not enough especially as the natural rate of interest  and the inflation rate are so low. What can be done:

  1. The Central Bank would pursue a higher inflation target so therefore experiencing a high natural rate of interest which leaves more room to cut to stimulate demand. The logic of this approach argues that a 1% increase in the inflation target would offset the harmful effects of an equal-sized decline in the natural rate
  2. Inflationary targeting could be replaced by a flexible price-level of nominal GDP, rather than the inflation rate.


Monetary policy can only do so much but with global interest rates at approximately zero there needs to be the support of the politicians to enlist a much more stimulatory fiscal policy. Monetary policy has run out of ammunition and we cannot rely on central banks to fight recessions. However a less politicised fiscal policy, which is free to act immediately, has the ammunition to revive the economy.


Monetary Policy in a low R-star World – FRBSF Economic Letter

The Economist: September 24th 2016 – The low-rate world

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