Economic history · Thatcher's Economic Policy

The Big Bang and the Lawson Boom

Six steps, about nine minutes, a question at each. You need no economics and no preparation, only a willingness to guess before you are told.

The Stock Exchange dropped its century-old rules in one morning. The rules on lending went too, and households spent the decade saving less of every pound they earned.

In 1979 money could barely leave Britain, every share deal in London carried the same fixed charge, and households saved more than a tenth of what they earned.

Margaret Thatcher's government removed the controls one by one. The London Stock Exchange, the market where company shares are bought and sold, gave up its old rules in a single morning in October 1986, remembered as the Big Bang. The freed money reached ordinary households as easy credit, and the spending it paid for became a boom.

Six steps cover the rules, the morning they ended, the boom the free money fed, the Budget that added to it, and the interest rates that stopped it in 1989.

What this module covers

  • The controls on money, and the October they ended
  • The deal that made the Stock Exchange scrap its own rules
  • The morning the trading floor went quiet
  • How the free money reached ordinary households
  • The 1988 Budget, taken in the Chancellor's chair
  • Interest rates at 15 per cent, and inflation back

Written for every level. Tap any underlined word for what it means, and open the boxes below for the economics behind each decision. If you already know the theory, skip both and the history reads straight through.

Step 1 of 6

Step 1 · October 1979

Money was set free first

There used to be a limit on how much money anyone could take out of the country. Then there was not.

In October 1979 the government scrapped exchange controls: the rules that had limited moving money out of Britain for forty years.

Until then, British savings mostly had to stay in Britain. From that month they could be invested anywhere in the world, New York included.

Billions of pounds moved abroad in the months that followed, on a scale the controls had never allowed, and much of that money went into foreign companies and foreign markets.

Britain's financial markets now had to compete to keep money, or watch it leave.

Take a guess. You are not expected to know the answers, and being wrong is what makes a number stick.

British savings could now be invested anywhere. What did that mean for the London Stock Exchange, the market where company shares are bought and sold?

For scale. The controls had stood for forty years, since the Second World War.

Step 2 · 1983 to October 1986

One morning, the two oldest rules gone

On 27 October 1986 the Stock Exchange dropped its two oldest rules in one morning, a change remembered as the Big Bang.

The first rule fixed the charge on every deal, so none of the member firms allowed to trade there could charge less. The second separated brokers, who took customers' orders, from s, who set the share prices, and no firm could do both.

The 1986 date had been agreed three years earlier, in a deal. The government had taken the Exchange to court over its rules, arguing that they blocked competition. In 1983 the two sides settled.

share
A part-ownership of a company. Its price is whatever somebody will pay for that part, so it moves with what buyers think the company is worth.
jobber
A Stock Exchange firm that set share prices and dealt only with brokers, never with the public. The role was abolished in the 1986 reform.

The government had taken the Stock Exchange to court over its rules. What did it trade for dropping the case?

For scale. The fixed charges had held since the nineteenth century; they went in a day.

Step 3 · October to December 1986

The floor went quiet

The Stock Exchange's old rules were gone, and within weeks its trading floor was nearly empty. The floor was the room where dealers met to trade face to face. The dealing had moved to computer screens in the firms' own offices.

Competition arrived just as fast: before the change 13 firms set share prices, and after it 31 firms did, quoting prices on screen and dealing at those prices. The value of shares traded each day rose 21 per cent.

The Stock Exchange had also banned outside firms from owning member firms. That ban ended on 27 October 1986 as well. Foreign banks bought many of the member firms.

By December 1986, what share of the dealing had left the trading floor for the screens?

For scale. The number of firms setting share prices went from 13 to 31.

Step 4 · 1980 to 1988

Britain stopped saving

British households saved less and less through the 1980s. In 1980 they saved 13.7p of every pound of income.

The rules that had limited lending inside Britain were removed in the 1980s, so banks could now lend freely to households at home. Banks and building societies competed to lend, and borrowing became easy for millions.

Households borrowed more as they saved less, and their borrowing rose far faster than their pay in 1987 and 1988. Much of it went on houses, and house prices more than doubled over the decade.

Households saved 13.7p of every pound of income in 1980. How much were they saving by 1988?

For scale. Households had still been saving 9.4p in the pound as recently as 1987; the fall was speeding up.

Step 5 · March 1988

You are the Chancellor

It is Budget day, March 1988, and you are the Chancellor, the minister in charge of tax and spending. The economy is growing fast and the government's is in surplus: it collects more in tax than it spends.

You have cut taxes in earlier Budgets, and you believe those cuts are why the economy is growing fast. The surplus gives you room to cut further. The doubt is the boom: people are already borrowing and spending freely.

Prices rose 3.4 per cent in 1986, the lowest pace for a generation, and are rising only a little faster now. But borrowing and spending are rising in ways that usually push prices up later.

Budget
The annual statement in which a government sets tax rates and spending plans for the year ahead and reports how the last year turned out. In Britain the Chancellor delivers it, and it is the main moment at which a government can change tax.
Household saving ratio7.8p in the poundWhat households saved from each pound of income in 1988, down from 13.7p in 1980. They are spending what they used to save, and that spending fuels the boom.
Household borrowingsurging since 1987People are borrowing far more while pay is not rising to match.
House pricesrising steeply since 1981House prices have risen steeply since 1981, and they are still climbing. Much of the borrowing behind the boom has gone on them.
Inflation3.4% in 1986The pace at which prices in general rise. 3.4 per cent in 1986 was the lowest for a generation, and it is still close to that low now.

You are the Chancellor. The economy is booming and the Budget is in surplus. You believe your tax cuts made the economy grow. What do you do?

Step 6 · 1988 to 1990

Stopping the boom

Stopping the boom took s of 15 per cent, reached on 5 October 1989.

Mortgage payments follow the interest rate, so every mortgage taken out in the 1980s now cost more each month, and spending slowed as borrowing got more expensive.

The interest rate had stood at 7.5 per cent in 1988, so the cost of borrowing doubled in a year. Prices were rising 7.8 per cent a year by 1989, against 3.4 per cent in 1986, and they were still speeding up.

The government that had freed borrowing in the early 1980s spent the decade's last years making it expensive again.

interest rate
The price of borrowing money, given as a percentage of the amount borrowed each year. The Bank of England sets one rate that acts as a floor under the rest, so when it moves, mortgages, loans and savings rates move with it.

Inflation was 3.4 per cent in 1986, the decade's low point. By 1990, was it higher or lower?

vs

A tie counts as correct either way.

For scale. Interest rates went from 7.5 per cent in 1988 to 15 per cent in October 1989 to stop the boom.

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What this module covered

Exchange controls scrapped

October 1979

The Big Bang

27 October 1986, the two oldest rules in one morning

Dealing off the floor by December 1986

about 95%

What households saved, 1980 and 1988

13.7p, then 7.8p in the pound

The 1988

top tax rate 40 per cent, basic 25, £4.5bn of tax cuts

Inflation, 1986 and 1990

3.4%, then 9.5%

You met four terms in this module

, , ,

share
A part-ownership of a company. Its price is whatever somebody will pay for that part, so it moves with what buyers think the company is worth.
jobber
A Stock Exchange firm that set share prices and dealt only with brokers, never with the public. The role was abolished in the 1986 reform.
Budget
The annual statement in which a government sets tax rates and spending plans for the year ahead and reports how the last year turned out. In Britain the Chancellor delivers it, and it is the main moment at which a government can change tax.
interest rate
The price of borrowing money, given as a percentage of the amount borrowed each year. The Bank of England sets one rate that acts as a floor under the rest, so when it moves, mortgages, loans and savings rates move with it.

Exchange controls ended in 1979. By 1990 inflation was 9.5 per cent, and the fight against rising prices had begun again.

Take it further

Where every figure came from

[1] The controls scrapped in 1979: Bank of England Quarterly Bulletin 1981, The effects of exchange control abolition on capital flows. Exchange controls were abolished in October 1979, ending forty years of limits on moving money out of Britain; the article records the outward portfolio flows that followed (p.369, Tables A and B).
[2] The deal, the day and the new City: Bank of England Quarterly Bulletin 1987, Change in The Stock Exchange and regulation of the City. The Stock Exchange's reform of 27 October 1986: the end of fixed commissions and of the compulsory separation of brokers from jobbers, agreed in 1983 in return for the government dropping its restrictive-practices court case against the Exchange's rulebook. Before the change 13 jobbing firms made markets; after it 31 firms did. By December perhaps 95% of business had left the trading floor, and daily turnover was up 21% (pp.54-60).
[3] What households saved: ONS, households' saving ratio, series NRJS. The saving ratio was 13.7% in 1980, 9.4% in 1987 and 7.8% in 1988.
[4] What households borrowed: Bank of England Quarterly Bulletin 1998 Q3, the personal sector in the 1980s and 1990s. Charts 4 and 8: personal borrowing surged relative to income in 1987-88, mirrored in the fall in the saving ratio. House prices rose 131% (Halifax measure) between 1981 Q1 and 1990 Q2, per the 1998 Q2 article used in module 8.
[5] What the 1988 Budget gave away: Nigel Lawson, Budget speech, 15 March 1988, Thatcher Foundation document 111449. The Budget's measures 'will cost £4.5 billion in 1988-89 over and above statutory indexation', which the module states as 4.5 billion pounds more than simply keeping pace with rising prices.
[6] The Commons suspended: Hansard, HC Deb 15 March 1988, Budget Statement, cols 1012-1013. Lawson, col 1012: 'I propose to abolish all the higher rates of tax above 40 per cent.' Col 1013: 'a basic rate of 25 per cent. and a single higher rate of 40 per cent.' Then the procedural entry, col 1013: 'Grave disorder having arisen in the House, MR. DEPUTY SPEAKER, pursuant to Standing Order No. 45... suspended the sitting' (5.01 to 5.11 pm).
[7] Where interest rates went: Bank of England Quarterly Bulletin 1989 Q4, Operation of monetary policy. Interest rates rose to 15% on 5 October 1989 (p.495). The Resolution Foundation's account: base rates were raised from 7.5% in 1988 to 15% in 1989.
[8] What inflation did: ONS, RPI annual inflation, series CZBH. Inflation was 3.4% in 1986, 7.8% in 1989 and 9.5% in 1990.
[9] The boom, judged afterwards: Resolution Foundation, The Thatcher legacy. Easy credit became an important driver of Britain's low household saving; tax was cut in 1986 and again in later years while the economy was already growing fast; base rates were raised from 7.5% in 1988 to 15% in 1989 to stop the boom.

Country data from the World Bank (CC BY 4.0) and the UNDP Human Development Report (CC BY 3.0 IGO)
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