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Articles for the ‘Essentials of Economics: Ch 12’ Category

End of the era of liquidity traps?

The linked article below from The Economist looks at whether the election of Donald Trump, the effects of the Brexit vote and policies being pursued elsewhere in the world mark a new macroeconomic era. We may be about to witness rising inflation and the end of the era of tight fiscal policy and loose monetary policy. We might see a return of a more Keynesian approach to macreconomic policy.

According to the article, since the financial crisis of 2008, we have been witnessing economies stuck in a liquidity trap. In such cases, there is little scope for further reductions in interest rates. And increases in money supply, in the form of quantitative easing, tend to be held in idle balances, rather than being spent on goods and services. The idle balances take the form of increased bank reserves to rebuild their capital base and increased purchases of assets such as shares and property.

Even if people did believe that monetary policy would work to boost aggregate demand and result in higher inflation, then they would also believe that any such boost would be temporary as central banks would then have to tighten monetary policy to keep inflation within the target they had been set. This would limit spending increases, keeping the economy in the liquidity trap.

With a liquidity trap, fiscal policy is likely to be much more effective than monetary policy in boosting aggregate demand. However, its scope to pull an economy out of recession and create sustained higher growth depends on the extent to which governments, and markets, can tolerate higher budget deficits and growing debt. With governments seeking to claw down deficits and ultimately debt, this severely limits the potential for using fiscal policy.

With the election of Donald Trump, we might be entering a new era of fiscal policy. He has promised large-scale infrastructure spending and tax cuts. Although he has also promised to reduce the deficit, he is implying that this will only occur when the economy is growing more rapidly and hence tax revenues are increasing.

Is Donald Trump a Keynesian? Or are such promises merely part of campaigning – promises that will be watered down when he takes office in January? We shall have to wait and see whether we are about to enter a new era of macroeconomic policy – an era that has been increasingly advocated by international bodies, such as the IMF and the OECD (see the blog post, OECD goes public).

Slumponomics: Trump and the political economy of liquidity traps The Economist (10/11/16)


  1. Explain what is meant by ‘the liquidity trap’.
  2. Why is monetary policy relatively ineffective in a liquidity trap? Use a diagram to support your argument.
  3. Why is fiscal policy (in the absence of public-sector deficit targets) relatively effective in a liquidity trap? Again, use a diagram to support your argument.
  4. Examine how the Japanese government attempted to escape the liquidity trap? (Search this site for ‘Abenomics’.)
  5. In what ways may the depreciation of the pound since the Brexit vote help the UK to escape the liquidity trap?
  6. Could a different form of quantitative easing, known as ‘helicopter money’, whereby government or private spending is financed directly by new money, allow countries to escape the liquidity trap? (Search this site for ‘helicopter money’.)
  7. Why may a political upheaval be necessary for a country to escape the liquidity trap?
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Brazil: suffering from an old economic problem in the new world

The article below looks at the economy of Brazil. The statistics do not look good. Real output fell last year by 3.8% and this year it is expected to fall by another 3.3%. Inflation this year is expected to be 9.0% and unemployment 11.2%, with the government deficit expected to be 10.4% of GDP.

The article considers Keynesian economics in the light of the case of Brazil, which is suffering from declining potential supply, but excess demand. It compares Brazil with the case of most developed countries in the aftermath of the financial crisis. Here countries have suffered from a lack of demand, made worse by austerity policies, and only helped by expansionary monetary policy. But the effect of the monetary policy has generally been weak, as much of the extra money has been used to purchase assets rather than funding a growth in aggregate demand.

Different policy prescriptions are proposed in the article. For developed countries struggling to grow, the solution would seem to be expansionary fiscal policy, made easy to fund by lower interest rates. For Brazil, by contrast, the solution proposed is one of austerity. Fiscal policy should be tightened. As the article states:

Spending restraint might well prove painful for some members of Brazilian society. But hyperinflation and default are hardly a walk in the park for those struggling to get by. Generally speaking, austerity has been a misguided policy approach in recent years. But Brazil is a special case. For now, anyway.

The tight fiscal policies could be accompanied by supply-side policies aimed at reducing bureaucracy and inefficiency.

Brazil and the new old normal: There is more than one kind of economic mess to be in The Economist, Free Exchange Economics (12/10/16)


  1. Explain what is meant by ‘crowding out’.
  2. What is meant by the ‘liquidity trap’? Why are many countries in the developed world currently in a liquidity trap?
  3. Why have central banks in the developed world found it difficult to stimulate growth with policies of quantitative easing?
  4. Under what circumstances would austerity policies be valuable in the developed world?
  5. Why is crowding out of fiscal policy unlikely to occur to any great extent in Europe, but is highly likely to occur in Brazil?
  6. What has happened to potential GDP in Brazil in the past couple of years?
  7. What is meant by the ‘terms of trade’? Why have Brazil’s terms of trade deteriorated?
  8. What sort of policies could the Brazilian government pursue to raise growth rates? Are these demand-side or supply-side policies?
  9. Should Brazil pursue austerity policies and, if so, what form should they take?
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Relaxing the inflation target

The Bank of England’s monetary policy is aimed at achieving an inflation rate of 2% CPI inflation ‘within a reasonable time period’, typically within 24 months. But speaking in Nottingham in one of the ‘Future Forum‘ events on 14 October, the Bank’s Governor, Mark Carney, said that the Bank would be willing to accept inflation above the target in order to protect growth in the economy.

“We’re willing to tolerate a bit of an overshoot in inflation over the course of the next few years in order to avoid rising unemployment, to cushion the blow and make sure the economy can adjust as well as possible.”

But why should the Bank be willing to relax its target – a target set by the government? In practice, a temporary rise above 2% can still be consistent with the target if inflation is predicted to return to 2% within ‘a reasonable time period’.

But if even if the forecast rate of inflation were above 2% in two years’ time, there would still be some logic in the Bank not tightening monetary policy – by raising Bank Rate or ending, or even reversing, quantitative easing. This would be the case when there was, or forecast to be, stagflation, whether actual or as a result of monetary policy.

The aim of an inflation target of 2% is to help create a growth in aggregate demand consistent with the economy operating with a zero output gap: i.e. with no excess or deficient demand. But when inflation is caused by rising costs, such as that caused by a depreciation in the exchange rate, inflation could still rise even though the output gap were negative.

A rise in interest rates in these circumstances could cause the negative output gap to widen. The economy could slip into stagflation: rising prices and falling output. Hopefully, if the exchange rate stopped falling, inflation would fall back once the effects of the lower exchange rate had fed through. But that might take longer than 24 months or a ‘reasonable period of time’.

So even if not raising interest rates in a situation of stagflation where the inflation rate is forecast to be above 2% in 24 months’ time is not in the ‘letter’ of the policy, it is within the ‘spirit’.

But what of exchange rates? Mark Carney also said that “Our job is not to target the exchange rate, our job is to target inflation. But that doesn’t mean we’re indifferent to the level of sterling. It does matter, ultimately, for inflation and over the course of two to three years out. So it matters to the conduct of monetary policy.”

But not tightening monetary policy if inflation is forecast to go above 2% could cause the exchange rate to fall further. It seems as if trying to arrest the fall in sterling and prevent a fall into recession are conflicting aims when the policy instrument for both is the rate of interest.

BoE’s Carney says not indifferent to sterling level, boosts pound Reuters, Andy Bruce and Peter Hobson (14/10/16)
Bank governor Mark Carney says inflation will rise BBC News, Kamal Ahmed (14/10/16)
Stagflation Risk May Mean Carney Has Little Love for Marmite Bloomberg, Simon Kennedy (14/10/16)
Bank can ‘let inflation go a bit’ to protect economy from Brexit, says Carney – but sterling will be a factor for interest rates This is Money, Adrian Lowery (14/10/16)
UK gilt yields soar on ‘hard Brexit’ and inflation fears Financial Times, Michael Mackenzie and Mehreen Khan (14/10/16)
Brexit latest: Life will ‘get difficult’ for the poor due to inflation says Mark Carney Independent, Ben Chu (14/10/16)
Prices to continue rising, warns Bank of England governor The Guardian, Katie Allen (14/10/16)

Bank of England
Monetary Policy Bank of England
Monetary Policy Framework Bank of England
How does monetary policy work? Bank of England
Future Forum 2016 Bank of England


  1. Explain the difference between cost-push and demand-pull inflation.
  2. If inflation rises as a result of rising costs, what can we say about the rate of increase in these costs? Is it likely that cost-push inflation would persist beyond the effects of a supply-side shock working through the economy?
  3. Can interest rates be used to control both inflation and the exchange rate? Explain why or why not.
  4. What is the possible role of fiscal policy in the current situation of a falling exchange rate and rising inflation?
  5. Why does the Bank of England target the rate of inflation in 24 months’ time and not the rate today? (After all, the Governor has to write a letter to the Chancellor explaining why inflation in any month is more than 1 percentage point above or below the target of 2%.)
  6. What is meant by a zero output gap? Is this the same as a situation of (a) full employment, (b) operating at full capacity? Explain.
  7. Why have UK gilt yields soared in the light of a possible ‘hard Brexit’, a falling exchange rate and rising inflation?
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The world economic outlook – as seen by the IMF

The IMF has just published its six-monthly World Economic Outlook. It expects world aggregate demand and growth to remain subdued. A combination of worries about the effects of Brexit and slower-than-expected growth in the USA has led the IMF to revise its forecasts for growth for both 2016 and 2017 downward by 0.1 percentage points compared with its April 2016 forecast. To quote the summary of the report:

Global growth is projected to slow to 3.1 percent in 2016 before recovering to 3.4 percent in 2017. The forecast, revised down by 0.1 percentage point for 2016 and 2017 relative to April, reflects a more subdued outlook for advanced economies following the June UK vote in favour of leaving the European Union (Brexit) and weaker-than-expected growth in the United States. These developments have put further downward pressure on global interest rates, as monetary policy is now expected to remain accommodative for longer.

Although the market reaction to the Brexit shock was reassuringly orderly, the ultimate impact remains very unclear, as the fate of institutional and trade arrangements between the United Kingdom and the European Union is uncertain.

The IMF is pessimistic about the outlook for advanced countries. It identifies political uncertainty and concerns about immigration and integration resulting in a rise in demands for populist, inward-looking policies as the major risk factors.

It is more optimistic about growth prospect for some emerging market economies, especially in Asia, but sees a sharp slowdown in other developing countries, especially in sub-Saharan Africa and in countries generally which rely on commodity exports during a period of lower commodity prices.

With little scope for further easing of monetary policy, the IMF recommends the increased use of fiscal policies:

Accommodative monetary policy alone cannot lift demand sufficiently, and fiscal support — calibrated to the amount of space available and oriented toward policies that protect the vulnerable and lift medium-term growth prospects — therefore remains essential for generating momentum and avoiding a lasting downshift in medium-term inflation expectations.

These fiscal policies should be accompanied by supply-side policies focused on structural reforms that can offset waning potential economic growth. These should include efforts to “boost labour force participation, improve the matching process in labour markets, and promote investment in research and development and innovation.”

IMF Sees Subdued Global Growth, Warns Economic Stagnation Could Fuel Protectionist Calls IMF News (4/10/16)
The World Economy: Moving Sideways IMF blog, Maurice Obstfeld (4/10/16)
The biggest threats facing the global economy in eight charts The Telegraph, Szu Ping Chan (4/10/16)
IMF and World Bank launch defence of open markets and free trade The Guardian, Larry Elliott (6/10/16)
IMF warns of financial stability risks BBC News, Andrew Walker (5/10/16)
Backlash to World Economic Order Clouds Outlook at IMF Talks Bloomberg, Rich Miller, Saleha Mohsin and Malcolm Scott (4/10/16)
IMF lowers growth forecast for US and other advanced economies Financial Times, Shawn Donnan (4/10/16)
Seven key points from the IMF’s latest global health check Financial TImes, Mehreen Khan (4/10/16)
Latest IMF forecast paints a bleak picture for global growth The Conversation, Geraint Johnes (5/10/16)

IMF Report, Videos and Data
World Economic Outlook, October 2016 IMF (4/10/16)
Press Conference on the Analytical Chapters IMF (27/9/16)
IMF Chief Economist Maurice Obstfeld explains the outlook for the global economy IMF Video (4/10/16)
Fiscal Policy in the New Normal IMF Video (6/10/16)
CNN Debate on the Global Economy IMF Video (6/10/16)
World Economic Outlook Database IMF (October 2016)


  1. Why is the IMF forecasting lower growth than in did in its April 2016 report?
  2. How much credibility should be put on IMF and other forecasts of global economic growth?
  3. Look at IMF forecasts for 2015 made in 2013 and 2012 for at least 2 macroeconomic indicators. How accurate were they? Explain the inaccuracies.
  4. What are the benefits and limitations of using fiscal policy to raise global economic growth?
  5. What are the main factors determining a country’s long-term rate of economic growth?
  6. Why is there growing mistrust of free trade in many countries? Is such mistrust justified?
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New UK monetary policy measures – somewhat short of the kitchen sink

The Bank of England has responded to forecasts of a dramatic slowdown in the UK economy in the wake of the Brexit vote. On 4th August, it announced a substantial easing of monetary policy, but still left room for further easing later.

Its new measures are based on the forecasts in its latest 3-monthly Inflation Report. Compared with the May forecasts, the Report predicts that, even with the new measures, aggregate demand growth will slow dramatically. As a result, over the next two years cumulative GDP growth will be 2.5% lower than it would have been with a Remain vote and unemployment will rise from 4.9% to around 5.5%.

What is more, the slower growth in aggregate demand will impact on aggregate supply. As the Governor said in his opening remarks at the Inflation Report press conference:

“The weakness in demand will itself weigh on supply as a period of low investment restrains growth in the capital stock and productivity.

There could also be more direct implications for supply from the decision to leave the European Union. The UK’s trading relationships are likely to change, but precisely how will be unclear for some time. If companies are uncertain about the future impact of this on their businesses, they could delay decisions about building supply capacity or entering new markets.”

Three main measures were announced.

•  A cut in Bank Rate from 0.5% to 0.25%. This is the first time Bank Rate has been changed since March 2009. The Bank hopes that banks will pass this on to customers in terms of lower borrowing rates.
•  A new ‘Term Funding Scheme (TFS)’. “Compared to the old Funding for Lending Scheme, the TFS is a pure monetary policy instrument that is likely to be more stimulative pound-for-pound.” The scheme makes £100bn of central bank reserves available as loans to banks and building societies. These will be at ultra-low interest rates to enable banks to pass on the new lower Bank Rate to customers in all forms of lending. What is more, banks will be charged a penalty if they do not lend this money.
•  An expansion of the quantitative easing programme beyond the previous £375 billion of gilt (government bond) purchases. This will consist of an extra £60bn of gilt purchases and the purchase of up to £10bn of UK corporate bonds.

The Bank recognises that there is a limit to what monetary policy can do and that there is also a role to play for fiscal policy. The new Chancellor, Philip Hammond, is considering what fiscal measures can be taken, including spending on infrastructure projects. These are likely to have relative high multiplier effects and would also increase aggregate supply at the same time. But we will have to wait for the Autumn Statement to see what measures will be taken.

But despite the limits to monetary policy, there is more the Bank of England could do. It already recognises that there may have to be a further cut in Bank Rate, perhaps to 0.1% or even to 0% (the ECB has a 0% rate). There could also be additional quantitative easing or additional term funding to banks.

Some economists argue that the Bank should go further still and, in conjunction with the Treasury, provide new money directly to fund infrastructure spending or tax cuts, or even as cash handouts to households. This extra money provided to the government would not increase government borrowing.

We discussed the use of this version of ‘helicopter money’ in the blogs, A flawed model of monetary policy, Global warning and People’s quantitative easing. Some of the articles below also consider the potential for this type of monetary policy. In a letter to The Guardian 35 economists advocate:

A fiscal stimulus financed by central bank money creation [which] could be used to fund essential investment in infrastructure projects – boosting the incomes of businesses and households, and increasing the public sector’s productive assets in the process. Alternatively, the money could be used to fund either a tax cut or direct cash transfers to households, resulting in an immediate increase of household disposable incomes.

Webcasts and podcasts
Inflation Report Press Conference Bank of England, Mark Carney (4/8/16)
Bank spells out chance of further rate cut this year BBC Radio 4 Today Programme, Ben Broadbent, Deputy Governor of the Bank of England (5/8/16)
Broadbent Ready to Back Another BOE Rate Cut Amid Slowdown Bloomberg, Chris Wyllie (5/8/16)
What’s Top of Mind? ‘Helicopter Money’ Goldman Sachs Macroeconomic Insights, Allison Nathan (April 2016)

Bank of England measures
Interest rate cut: What did the Bank of England announce today and how will it affect you? Independent, Ben Chu (5/8/16)
This is the Bank of England’s all-action response to Brexit The Guardian, Larry Elliott (4/8/16)
Bank of England unveils four-pronged stimulus package in bid to avoid Brexit recession The Telegraph, Szu Ping Chan (4/8/16)
Record-breaking Bank of England Financial Times, Robin Wigglesworth (4/8/16)
The Bank of England has delivered – now for a fiscal response Financial Times (4/8/16)
Bank of England Cuts Interest Rate to Historic Low, Citing Economic Pressures New York Times, Chad Bray (4/8/16)
Sledgehammer? This is more like the small tool to fix a fence The Telegraph, Andrew Sentance (5/8/16)
All eyes are on Hammond as Bank runs low on options The Telegraph, Tom Stevenson (6/8/16)
Bank of England’s stimulus package has bought the chancellor some time The Guardian, Larry Elliott (7/8/16)

Helicopter money
A post-Brexit economic policy reset for the UK is essential Guardian letters, 35 economists (3/8/16)
Cash handouts are best way to boost British growth, say economists The Guardian, Larry Elliott (4/8/16)
Helicopter money: if not now, when? Financial Times, Martin Sandbu (2/8/16)
The helicopters fly on for now, but one day they will crash The Telegraph, Tom Stevenson (23/7/16)
Is the concept of ‘helicopter money’ set for a resurgence? The Conversation, Phil Lewis (2/8/16)
Helicopter money talk takes flight as Bank of Japan runs out of runway Reuters, Stanley White (30/7/16)
Helicopters 101: your guide to monetary financing Deutsche Bank Research, George Saravelos, Daniel Brehon and Robin Winkler (15/4/16)
Helicopter money is back in the air The Guardian, Robert Skidelsky (22/9/16)

Bank of England publications
Inflation Report, August 2016 Bank of England (4/8/16)
Inflation Report Press Conference: Opening Remarks by the Governor Bank of England, Mark Carney (4/8/16)
Inflation Report Q&A Bank of England Press Conference (4/8/16)
Inflation Report, August 2016: Landing page Bank of England (4/8/16)


  1. Find out the details of the previous Funding for Lending (FLS) scheme. How does the new Term Funding Scheme (TFS) differ from it? Why does the Bank of England feel that TFS is likely to be more effective than FLS in expanding lending?
  2. What is the transmission mechanism between asset purchases and real aggregate demand?
  3. What factors determine the level of borrowing in the economy? How is cutting Bank Rate from 0.5% to 0.25% likely to affect borrowing?
  4. If the Bank of England’s latest forecast is for a significant reduction in economic growth from its previous forecast, why did the Bank not introduce stronger measures, such as larger asset purchases or a cut in Bank Rate to 0.1%?
  5. What are the advantages and disadvantages of helicopter money in the current circumstances? If helicopter money were used, would it be better to use it for funding public-sector infrastructure projects or for cash handouts to households, either directly or in the form of tax cuts?
  6. How does the Bank of England’s measures of 4 August compare with those announced by the Japanese central bank on 29 July?
  7. What effects can changes in aggregate demand have on aggregate supply?
  8. What supply-side policies could the government adopt to back up monetary and fiscal policy? Are the there lessons here from the Japanese government’s ‘three arrows’?
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Don’t bank on Italy’s economy

The Brexit vote has caused shockwaves throughout European economies. But there is a potentially larger economic and political problem facing the EU and the eurozone more specifically. And that is the state of the Italian banking system and the Italian economy.

Italy is the third largest economy in the eurozone after Germany and France. Any serious economic weaknesses could have profound consequences for the rest of the eurozone and beyond.

At 135% of GDP, Italy’s public-sector debt is one the highest in the world; its banks are undercapitalised with a high proportion of bad debt; and it is still struggling to recover from the crisis of 2008–9. The Economist article elaborates:

The adult employment rate is lower than in any EU country bar Greece. The economy has been moribund for years, suffocated by over-regulation and feeble productivity. Amid stagnation and deflation, Italy’s banks are in deep trouble, burdened by some €360 billion of souring loans, the equivalent of a fifth of the country’s GDP. Collectively they have provisioned for only 45% of that amount. At best, Italy’s weak banks will throttle the country’s growth; at worst, some will go bust.

Since 2007, the economy has shrunk by 10%. And potential output has fallen too, as firms have closed. Unemployment is over 11%, with youth unemployment around 40%.

Things seem to be coming to a head. As confidence in the Italian banking system plummets, the Italian government would like to bail out the banks to try to restore confidence and encourage deposits and lending. But under new eurozone rules designed to protect taxpayers, it requires that the first line of support should be from bondholders. Such support is known as a ‘bail-in’.

If bondholders were large institutional investors, this might not be such a problem, but a significant proportion of bank bonds in Italy are held by small investors, encouraged to do so by tax relief. Bailing in the banks by requiring bondholders to bear significant losses in the value of their bonds could undermine the savings of many Italians and cause them severe hardship, especially those who had saved for their retirement.

So what is the solution? Italian banks need recapitalising to restore confidence and prevent a more serious crisis. However, there is limited scope for bailing in, unless small investors can be protected. And eurozone rules provide little scope for government funding for the banks. These rules should be relaxed under extreme circumstances. At the same time, policy needs to focus on making Italian banking more efficient.

Meanwhile, the IMF is forecasting that Italian economic growth will be less than 1% this year and little better in 2017. Part of the problem, claims the IMF, is the Brexit vote. This has heightened financial market volatility and increasead the risks for Italy with its fragile banking system. But the problems of the Italian economy run deeper and will require various supply-side policies to tackle low productivity, corruption, public-sector inefficiency and a financial system not fit for purpose. What the mix of these policies should be – whether market based or interventionist – is not just a question of effectiveness, but of political viability and democratic support.

The Italian Job The Economist (9/7/16)
IMF warns Italy of two-decade-long recessionThe Guardian, Larry Elliott (11/7/16)
Italy economy: IMF says country has ‘two lost decades’ of growth BBC News (12/7/16)
What’s the problem with Italian banks? BBC News, Andrew Walker (10/7/16)
Why Italy’s banking crisis will shake the eurozone to its core The Telegraph, Tim Wallace Szu Ping Chan (16/8/16)
If You Thought Brexit Was Bad Wait Until The Italian Banks All Go Bust Forbes, Tim Worstall (17/7/16)
In the euro zone’s latest crisis, Italy is torn between saving the banks or saving its people Quartz, Cassie Werber (13/7/16)
Why Italy could be the next European country to face an economic crisis Vox, Timothy B. Lee (8/7/16)
Forget Brexit, Quitaly is Europe’s next worry The Guardian, Larry Elliott (26/7/16)

Italy IMF Country Report No. 16/222 (July 2016)

Economic Outlook OECD (June 2016) (select ‘By country’ from the left-hand panel and then choose ‘Italy’ from the pull-down menu and choose appropriate time series)


  1. Can changes in aggregate demand have supply-side consequences? Explain.
  2. Explain why there may be a downward spiral of asset sales by banks.
  3. How might the principle of bail-ins for undercapitalised Italian banks be pursued without being at the expense of the small saver?
  4. What lessons are there from Japan’s ‘three arrows’ for Italy? Does being in the eurozone constrain Italy’s ability to adopt any or all of these three categories of policy?
  5. Why may the Brexit vote have more serious consequences for Italy than many other European economies?
  6. Find out what reforms have already been adopted or are being pursued by the Italian government. How successful are they likely to be in increasing Italian growth and productivity?
  7. What external factors are currently (a) favourable, (b) unfavourable to improving Italian growth and productivity?
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Economists: have we failed to communicate to the general public?

Before the referendum, economists overwhelmingly argued that the economic case for the UK remaining in the EU was much stronger than that for leaving. They warned of serious economic consequences, both short term and long term, of a Brexit vote. And yet, by a majority of 51.9% to 48.1% of the 72.1% of the electorate who voted, the UK voted to leave the EU.

Does this mean that economists failed to communicate to the electorate? Were the arguments presented poorly or in too academic a way?

Or did people simply not believe the economists’ forecasts, being cynical about the ability of economists to forecast? During the campaign, on several occasions I heard people repeating the joke that economists had successfully predicted five out of the last two recessions!

Did they not believe the data that immigrants from other EU countries to the UK contribute more in taxes they draw in benefits and that overall they make a net positive contribution to output per head? Or perhaps they believed the claims that immigrants imposed a net cost on the economy.

Or were there ‘non-economic’ issues that people found more persuasive, such as questions of sovereignty or national identity? Or was the strain on local resources, such as health services, schools and housing, blamed on immigration itself rather than on a lack of spending on additional resources – the funding for which could have come from the extra GDP generated by the immigration?

Or were there so many lies told by politicians and those with vested interests that people simply didn’t know whom to believe?

Economists will, no doubt, do a lot of soul searching over the coming months. One such economist is Paul Johnson, Director of the Institute for Fiscal Studies, whose article is linked below.

We economists must face the plain truth that the referendum showed our failings Institute for Fiscal Studies newspaper articles. Paul Johnson (28/6/16)


  1. In what ways could economists have communicated better to the general public during the referendum campaign?
  2. For what reasons may people distrust economists?
  3. Were economists hampered in delivering their message by ‘balanced reporting’?
  4. Comment on Paul Johnson’s statement that, ‘The most politically engaged of us spend decades working out how to tweak tax policy, or labour market policy, or competition policy to deliver small benefits. How many times over would our work have been repaid if we had simply convinced a few more people of the basics?’
  5. Do economists, or at least some of them, need to become more ‘media savvy’?
  6. How could institutions, such as the Royal Economic Society and the Society of Business Economists, do more to help economists collectively to communicate with the general public?
  7. Give some examples of the terminology/jargon we use which might be inappropriate for communicating with the general public. Suggest some alternative terms to the examples you’ve given.
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Low global growth – the new norm?

In the blog post, Global warning, we looked at the use of unconventional macroeconomic policies to deal with the slow pace of economic growth around the world. One of the articles was by Nouriel Roubini. In the linked article below, he argues that slow economic growth may be the new global norm.

At the centre of the problem is a fall in the rate of potential economic growth. This has been caused by a lack of investment, which has slowed the pace of innovation and the growth in labour productivity.

The lack of investment, in turn, has been caused by a lack of spending by both households and governments. What is the point in investing in new capacity, argue firms, if they already have spare capacity?

Low consumer spending is partly the result of a redistribution of income from low- and middle-income households (who have a high marginal propensity to consume) to high-income households and corporations (who have a low mpc). Low spending is also the result of both consumers and governments attempting to reduce their levels of debt by cutting back spending.

Low growth leads to hysteresis – the process whereby low actual growth leads to low potential growth. The reason is that the unemployed become deskilled and the lack of investment by firms reduces the innovation that is necessary to embed new technologies.

Read Roubini’s analysis and consider the policy implications.

Has the global economic growth malaise become the ‘new normal’? The Guardian, Nouriel Roubini (2/5/16)


  1. Explain what is meant by ‘hysteresis’ and how the concept is relevant in explaining low global economic growth.
  2. Why has there been a reduction in the marginal propensity to consume in recent years? What is the implication of this for the multiplier and economic recovery?
  3. Explain what Roubini means by ‘a painful de-leveraging process’. What are the implications of this process?
  4. How important are structural reforms and what forms could these take? Why has there been a reluctance for governments to institute such reforms?
  5. ‘Asymmetric adjustment between debtor and creditor economies has also undermined growth.’ Explain what Roubini means by this.
  6. Why are governments reluctant to use fiscal policy to boost both actual and potential economic growth?
  7. What feasible policy measures could be taken to boost actual and potential economic growth?
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A flawed model of monetary policy

In a recent post, Global Warning, we looked at concerns about the global economy. One of these was about the ineffectiveness of monetary policy to stimulate aggregate demand and to restore growth rates. Despite the use of unconventional monetary policies, such as quantitative easing and negative interest rates, and despite the fact that these policies have become the new convention, they have failed to do enough to bring sustained recovery.

The two articles below argue that the failure has been due to a flawed model of monetary policy: one that takes too little account of the behaviour of banks and the drivers of consumption and of physical investment. Negative interest rates on banks’ holdings of reserves in central banks are hardly likely to push down lending rates to businesses sufficiently to stimulate investment in new plant and machinery if firms already have overcapacity. And consumers are unlikely to borrow more for consumption if their wages are barely rising and they already have debts that they fear will be difficulty to pay off.

As Joseph Stiglitz points out:

As real interest rates have fallen, business investment has stagnated. According to the OECD, the percentage of GDP invested in a category that is mostly plant and equipment has fallen in both Europe and the US in recent years. (In the US, it fell from 8.4% in 2000 to 6.8% in 2014; in the EU, it fell from 7.5% to 5.7% over the same period.) Other data provide a similar picture.

And the unwillingness of many firms and individuals to borrow is matched by banks’ caution about lending in an uncertain economic environment. Many are more concerned about building their capital and liquidity ratios to protect themselves. In these circumstances, negative interest rates have little effect on stimulating bank lending and, by hurting their balance sheets through lower earnings on the money markets, may even encourage them to lend less

What central banks should be doing, argue both Stiglitz and Elliott, is finding ways of directly stimulating consumption and investment. Perhaps this will involve central banks “focusing on the flow of credit, which means restoring and maintaining local banks’ ability and willingness to lend to SMEs.” Perhaps it will mean using helicopter money, as we examined in the previous blog. As Larry Elliott points out:

The fact that economists at Deutsche Bank published a helpful cut-out-and-keep guide to helicopter money last week is a straw in the wind.

As the Deutsche research makes clear, the most basic variant of helicopter money involves a central bank creating money so that it can be handed to the finance ministry to spend on tax cuts or higher public spending. There are two differences with QE. The cash goes directly to firms and individuals rather than being channelled through banks, and there is no intention of the central bank ever getting it back.

So if the model of monetary policy is indeed flawed, prepare for more unconventional measures

What’s Wrong With Negative Rates?, Project Syndicate, Joseph Stiglitz (13/4/16)
The bad smell hovering over the global economy The Guardian, Larry Elliott (17/4/16)


  1. What arguments does Stiglitz use to support his claim that the model of monetary policy currently being used is flawed?
  2. In what ways has monetary policy hurt older people and what has been the effect on their spending and on aggregate demand in general?
  3. Why has monetary policy encouraged investors to shift their portfolios toward riskier assets?
  4. Examine the argument that ultra-low interest rates may result in a rise in unemployment in the long term by affecting the relative prices of capital and labour.
  5. What forms might helicopter money take?
  6. Would the use of helicopter money necessarily result in an increase in aggregate demand? What would determine the size of any such increase?
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More interest in the interesting case of UK interest rates

In a recent blog Accelerating interest in the interesting case of UK interest rates we compared the level of the official Bank Rate, which has now been at 0.5 per cent for over seven years, with a representative unsecured borrowing rate. In doing so, we found some evidence that credit conditions might be easing following the credit market disturbance of the late 2000s. Here we take the opportunity not only to review that data again one month on, but also to see whether a similar picture is true for the mortgage market.

Theories of the financial accelerator argue that the macroeconomic environment can affect commercial banks’ lending practices. One way in which this can operate is through the difference between banks’ lending rates and the official Bank Rate. We can think of such interest-rate differentials – or spreads – as a credit premium. The size of the premium may be thought to reflect lenders’ perceived risk of default by borrowers. It is argued by some economists that interest-rate differentials will fall when the economy is doing well and increase when the economy is doing less well. This is because the probability of default by borrowers is seen as smaller when the macroeconomic environment improves.

The effect of interest-rate differentials that are contingent on the macroeconomic environment is to amplify the business cycle. For example, a positive demand-side shock, such as a rise in consumer confidence, which causes the economy’s aggregate demand to rise will, in turn, lead to lower borrowing rates relative to the official Bank Rate. This financial effect further stimulates the demand for credit and, as a consequence, aggregate demand and economic activity. It is an example of what economists called the financial accelerator.

The chart shows the Bank Rate along with the average unsecured borrowing rate on loans by Monetary Financial Institutions (MFIs) of £10 000. Unlike secured borrowing, which we consider shortly, unsecured borrowing is not secured against property.

As expected, we can see that the unsecured borrowing rate is greater than the Bank Rate. In other words, there is a positive interest-rate differential. However, this differential is seen to vary. It falls sharply in the period up to the financial crisis. In early 2002 it was running at 8 percentage points. By summer 2007 the differential had fallen to only 1.7 percentage points. (Click here to download a PowerPoint of the chart.)

The period from 2002 to 2007 was characterised by consistently robust growth with the UK economy growing by about 2.7 per cent per annum over this period. This may point to economic growth can contributing to an easing of credit conditions as implied by the financial accelerator.

The story from 2008 changes very quickly as the interest-rate differential increases very sharply. In 2009, as the official Bank Rate was cut to 0.5 per cent, the unsecured borrowing rate climbed to close to 10.5 per cent. Consequently, the interest-rate differential rose to 10 percentage points. Inter-bank lending had dried up with banks concerned that banks would default on loans. The increase in interest rates on lending to the non-bank private sector was stark and evidence of a credit market disruption.

The interest-rate differential for unsecured borrowing has steadily declined since its peak at the end of 2009 as the unsecured borrowing rate has fallen. This implies that credit conditions have eased. In March 2016 our interest-rate differential for unsecured borrowing stood at 3.8 percentage points, not dissimilar to levels over the past 12 months. Interestingly, today’s differential on unsecured borrowing is lower than the 6.5 percentage point average over the period from 1997 to 2003, before the differential then went on its pre-crisis fall.

Our second chart repeats the analysis but this time for mortgages. The representative mortgage rate is the average standard variable mortgage rate.

Unlike that for unsecured borrowing, the interest-rate differential for mortgages is fairly constant up to the financial crisis. The widely report credit easing in the mortgage market appears to have operated more through amounts lent rather than through price, as evidenced by rising mortgage advance-to-income ratios. (Click here to download a PowerPoint of the chart.)

The second chart shows clear evidence of a credit market disruption from 2009. Hence, the markets for secured and unsecured lending saw credit conditions tighten with interest-rate differentials rising markedly. However, it shows that the higher interest-rate differential for secured lending following the credit market disruption remains. So while the differential has fallen sharply for unsecured lending the situation is quite different in the mortgage market. In fact, February and March 2016 saw the mortgage rate spread at 4.17 percentage points which is an historic high.

Our interest rate data show that interest-rate differentials can vary significantly over time. This is important to understand when we are thinking about the relationships between the macroeconomy and the financial system. Significantly, the data suggest that interest rates on different financial instruments can behave differently such that differences emerge in the patterns of spreads over the official Bank Rate.

The evidence on UK mortgage rates suggests that the market remains affected by the financial crisis and the credit market disruption that arose. Although the level of mortgage rates is historically low – which tends to capture many of the headlines – this masks an historically high premium over the official Bank Rate.

Bank warns EU vote may hit growth as it holds rates BBC News, (14/4/16)
Carney issues a warning as interest rates are held Belfast Telegraph, (15/4/16)
Bank Of England Leaves Interest Rates On Hold Sky News, (14/4/16)
UK banks plan to boost lending to households but not firms – BoE Reuters, (13/4/16)
Mortgage rates reach record lows as threat of Bank Rate rise evaporates Telegraph, Tara Evans (1/4/16)

Bankstats (Monetary and Financial Statistics) – Latest Tables Bank of England
Statistical Interactive Database – interest and exchange rates data Bank of England


  1. Why would we expect banks’ borrowing rates to be higher than the official Bank Rate?
  2. How might banks’ credit criteria change as the macroeconomic environment changes? Explain your answer.
  3. As well as the macroeconomic environment, what other factors might lead to a change in the interest-rate differential between banks’ borrowing rates and the official Bank Rate?
  4. How would we expect a credit market disruption to affect the interest-rate differential?
  5. Explain how the financial accelerator affects the change in the size of the economy following a positive demand shock.
  6. Explain how the financial accelerator affects the change in the size of the economy following a negative demand shock.
  7. What is the impact of the financial accelerator of the amplitude of the business cycle?
  8. How might regulators intervene to minimise the effect of the financial accelerator?
  9. Why might explain the high interest-rate differential on mortgages that continues to persist following the financial crisis?
  10. Analyse the ways in which the financial system can stabilise or destabilise economies.
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