Currently covering Keynes vs Monetarist in the A2 course. Here is a powerpoint on the theory that I use for revision purposes. I have found that the graphs are particularly useful in explaining the theory. The powerpoint includes explanations of:
Circular Flow and the Multiplier
Diagrammatic Representation of Multiplier and Accelerator
I always encourage students to be aware of what is happening in the global economy as well as their own. Below are growth, unemployment and interest rates for the main economies. Note the high rates of quarterly economic growth which indicates a bounce back from the previous quarter when most of the world was in a serious lockdown. The unemployment rates you would expect to be a lot higher with COVID-19 and a 4.9% rate in NZ was a surprise. An area of employment growth in the December quarter was Construction, along with many government-dominated industry types. Monetary policy been very accommodative and although rates have been very low note that in Japan and the Euro zone areas it has been like this since 2016. These figures could be used for discussion purposes in you class.
Source: Monthly Economic Review – February 2021 – NZ Parliamentary Service
Below is a useful flow chart for anyone studying monetary policy. Both the NCEA Level 3 and CIE A2 courses cover this topic.
Negative – lower interest rates might depress spending by some retirees who rely on interest income. But these counterproductive channels are small compared to the Positive – lower interest rates = a lower propensity to save and a higher propensity to spend.
The side effects of monetary policy. Falling interest rates = accelerating house prices = social problems and political anxiety. If RBNZ kept interest rates at around 8% as in the 2000s to prevent the house price = New Zealand in deflationary spiral.
The economic and social consequences of deflation would be far worse than the (undeniable) problems with rising house prices. The low inflation / falling interest rate dynamic of the past two decades has been a global phenomenon, ultimately caused by a global change in the balance between savings and investment. The Reserve Bank of New Zealand could not have prevented this global trend from affecting New Zealand interest rates without causing severe damage to the economy. In New Zealand, the most important transmission channels are asset prices and the exchange rate. Falling interest rates tend to push asset prices up, which stimulates consumer spending. Falling interest rates also tend to reduce the exchange rate, which generates inflation via the prices of internationally-traded goods and services.
Japan is top of the table in accumulating government debt and with a record stimulus to cushion the impact of COVID-19 it is approaching debt levels of 250% of GDP. So how does Japan manage to keep its government bond yields so low (see graph below) and investor confidence high that it can avoid default?
To finance this debt, the Japanese government issues bonds known as JGBs. These are snapped up in enormous volumes by the Bank of Japan (BoJ), the country’s central bank that is officially independent but in practice closely co-ordinates economic policy with the government.
Bond Prices vs Yield
Like any investment the buyer of the bond wants to get the greatest return. Bond prices and interest rates (yield) move in opposite directions and an easy way to consider this is zero-coupon bonds. Here the interest is derived by the difference between the purchase price of the bond and the value of the bond on maturity. Bond price $920 – Maturity value $1000. The bond’s rate of return = (1000-80 ÷ 920) x 100 = 8.7% return. However a lot depends on what else is happening in the bond market. If interest were to increase and newly issued bonds were giving a return of 10% the 8.7% return is no longer attractive. To match the 10% the original bond price would have to decrease to $909. The bond’s rate of return = (1000-909 ÷ 909) x 100 = 10% return
Reasons for low rates on JGB’s
Japanese Government Bond (JGB) is a bond issued by the government of Japan. The government pays interest on the bond until the maturity date. At the maturity date, the full price of the bond is returned to the bondholder. Japanese government bonds play a key role in the financial securities market in Japan.
The BoJ has recently been buying up billions dollars of Japanese government bonds keeping interest rates around 0% in the hope of increasing the inflation rate to its 2% target. Therefore any rise in bond yields triggers a buy action from the BoJ. As of 2019, the central bank owns over 40% of Japanese government bonds. The BOJ’s government bond holdings rose 3.4% from a year ago to 486 trillion yen ($4.5 trillion) as of March 2020, roughly 90% the size of the country’s economy, according to the central bank’s earnings report for the previous fiscal year.
Today central banks have a limited toolkit and the powers to deal with the savings glut (see image below), lack of investment, climate change and income inequality. There is a lot of money in the system but the velocity of circulation is slow – MV=PT – and this is one reason why we have little inflation.
Velocity of circulation of money is part of the the Monetarist explanation of inflation operates through the Fisher equation:
M x V = P x T
M = Stock of money V = Income Velocity of Circulation P = Average Price level T = Volume of Transactions or Output
Add to this COVID-19 and the impact it has had on especially developing economies and we have economic stagnation.
Some economists have suggested the need for more expansionary fiscal policy as well as structural reform to achieve economic growth. The latter being a long-term policy can take the form of price controls, management of public finances, financial sector reforms. labour market reforms etc. Although the US Federal Reserve is adopting a flexible average inflation target to avoid a disinflationary environment it will not be enough to deal with secular stagnation.
Secular stagnation Since the GFC in 2008 it is evident that low interest rates are the new normal and according to Larry Summers (former Treasury Secretary) we are in an era of secular stagnation. This refers to the fact that on average the ‘natural interest rate’ – the rate consistent with full employment – is very low. There can be periods of full employment but even with 0% interest rates private demand is insufficient to eliminate the output gap. The US was in a liquidity trap for eight of the past 12 years; Europe and Japan are still there, and the market now appears to believe that something like this is another the new normal.
Paul Krugman suggests that there are real doubts about unconventional monetary policy and that the stimulus for an economy should take the form of permanent public investment spending on both physical and human capital – infrastructure and health of the population. This spending would take the form of deficit-financed public investment. There has been the suggestion that deficit-financed public investment might lead to ‘crowding out’ private investment and also how is the debt repaid? Krugman came up with three offsetting factors
When the economy is in a liquidity trap, which now seems likely to be a large fraction of the time, the extra public investment will have a multiplier effect, raising GDP relative to what it would otherwise be. Based on the experience of the past decade, the multiplier would probably be around 1.5, meaning 3% higher GDP in bad times — and considerable additional revenue from that higher level of GDP. Permanent fiscal stimulus wouldn’t pay for itself, but it would pay for part of itself.
If the investment is productive, it will expand the economy’s productive capacity in the long run.This is obviously true for physical infrastructure and R&D, but there is also strong evidence that safety-net programmes for children make them healthier, more productive adults, which also helps offset their direct fiscal cost (Hoynes and Whitmore Schanzenbach 2018).
There’s fairly strong evidence of hysteresis — temporary downturns permanently or semi-permanently depress future output (Fatás and Summers 2015).
Source: “The Case for a permanent stimulus”. Paul Krugman cited in “Mitigating the COVID Economic Crisis: Act Fast and Do Whatever It Takes” Edited by Richard Baldwin and Beatrice Weder di Mauro
Below is a useful flow diagram from the ANZ bank which adds Large Scale Asset Purchases (LSAP) and Funding for Lending Programme (FLP) to the Official Cash Rate (OCR – Base Rate)
LSAP – this is the buying of up $100 billion of government bonds – quantitative easing FLP – this gives banks cheap lending based on the Official Cash Rate – could be about $28 billion based on take up OCR – wholesale interest rate currently at 0.25%. Commercial banks borrow at 0.5% above OCR and can save at the Reserve Bank of New Zealand (RBNZ) at 1% below OCR.
With FLP and more LSAP this will mean lower lending rates and deposit rates. This should provide more stimulus in the economy and allay fears of future funding constraints making banks more confident about lending. Add to this a third stimulus – an OCR of 0.25%. The flow chart shows the impact that these three stimulus policies have on a variety of variables including – exchange rates – inflation -unemployment – consumer spending – investment – GDP. Very useful for a class discussion on the monetary policy mechanism.
This is a very good introductory video on inflation from Economics Explained. It explains Inflation, Hyperinflation, Stagflation, Fiscal Policy, Monetary Policy etc. Material covered is part of NCEA Level 2 – Inflation and CIE AS Level Unit 4.
Here is a really funny video by the students of Columbia Business School (CBS) – you may have seen it before but I find it very useful when you start teaching monetary policy and interest rates.
Back in 2006 Alan Greenspan vacated the role of chairman of the US Federal Reserve and the two main candidates for the job were Ben Bernanke and Glenn Hubbard. Glen Hubbard was (and still is) the Dean at Columbia Business School and was no doubt disappointed about losing out to Ben Bernanke. His students obviously felt a certain amount of sympathy for him and used the song “Every Breath You Take” by The Police to voice their opinion as to who should have got the job. They have altered the lyrics and the lead singer plays Glenn Hubbard.
Some significant economic words in it are: – interest rates, stagflate, inflate, bps, jobs, growth etc.
From the Economist – good video on government bonds and debt through the ages with some great graphics.
It asks the question is government debt a concern today? They state that as long as a country’s GDP is growing faster than the country’s debt accumulating in interest then it grow its way out of debt with no fiscal cost. It also questions why interest rates today are low? Central banks such as the RBNZ and the US Federal Reserve set the interest rates and will keep them low until the economy starts some sort of recovery. They are able to do this as there is little to no inflationary pressure in the economy – remember most central banks have an inflationary target. This does mean that savers lose out as the return they get is very low. Furthermore implementing a programme of quantitative easing floods the market with cash which in turn leads to a lower cost of borrowing.
Part of the CIE A2 macro syllabus focuses on the wage price spiral which relates to the Phillips Curve. Here are some excellent notes that I picked up from Russell Tillson in my early days teaching at Epsom College in London. As from previous posts, the Phillips Curve analysed data for money wages against the rate of unemployment over the period 1862-1958. Money wages and prices were seen to be strongly correlated, mainly because the former are the most significant costs of production. Hence the resulting curve purported to provide a “trade-off’ between inflation and unemployment – i.e. the government could ‘select’ its desired position on the curve. During the 1970’s higher rates of inflation than previously were associated with any given level of unemployment. It was generally considered that the whole curve had shifted right – i.e. to achieve full employment a higher rate of inflation than previously had to be accepted. Milton Friedman’s expectations-augmented Phillips Curve denies the existence of any long-run trade off between inflation and unemployment. In short, attempts to reduce unemployment below its natural rate by fiscal reflation will succeed only at the cost of generating a wage-price spiral, as wages are quickly cancelled out by increases in prices.
Central banks have found that inflation has been the pest it has been in the past – most countries inflation rates have been short of its target rate. After the GFC the level of unemployment rose and inflation was quite subdues. However, with the post GFC recovery unemployment began to fall whilst the inflation rate was still showing no signs of accelerating which went against the original Phillips Curve. A further problem was that imported goods and services in one country have little relevance on the wages in another and the low levels of unemployment tempted people back into the labour force who hadn’t been counted as unemployed. This is particularly the case in Japan.
When there is an increase in job numbers, with a boom period, inflation may also be slow to rise. Although firms tend to be reluctant to lower wages when the economic climate slows as it is harmful to staff morale. The same could be said in good times as wages tend not to rise that quickly.
For many businesses changing the price of their goods or services can be costly especially for a small increase in price. Therefore the change in the business cycle tends not to be reflected in price changes as there needs to be major swings before prices will move at all. Central bank policy tends to manipulate interest rates to maintain a stable inflation causing unemployment to move up or down – unemployment is what changes not inflation.
The problem that central banks face today is that to keep the phillips curve flat they need to be able to cut interest rates to stimulate growth when inflation threatens to become deflation. However there is little room for further easing with rates so low. Central banks will need to work with the government’s fiscal policy to stimulate growth and spend the money that the central bank’s create.