I made this video in 2017, a year after the Brexit vote. In 2020, the Brexit chaos still continues and the exchange rate of GBP did not recover to its pre-referendum value. The reasons below are still relevant to explain the current weakness of the GBP.
In this video, I answer the following questions:
1. What is an exchange rate?
Exchange rate is the value (or price) of a currency compared to another one.
2. What determines the exchange rate?
The market: Supply and demand. When there is a strong demand for a given currency, this currency appreciates, vice-versa.
3. What happened to the exchange rate British Pound (GBP)?
The British Pound (GBP) has strongly depreciated right after the Brexit vote, up to 20% against the euro for instance. The exchange rate of the pound did not recover to its initial value since then.
4. Why has the British Pound depreciated?
3 mains reasons explain the deprecation of the GBP:
Reason 1: The UK economy is expected to be POORER and LESS PRODUCTIVE in the coming years, compared to the situation where it stayed in the EU.
- The UK has significantly benefited from the access to the EU Single Market. Being a part of the European supply chain enabled UK producers to produce in a more efficient way by cutting production costs.
- The reestablishment of border controls and custom duties would make the UK LESS attractive for foreign investors and diminishes demand for GBP.
Reason 2: Monetary policy: Low Bank of England policy interest rates
- Investors tend to buy assets of countries that offer high interest rates (and high returns). Therefore, high policy interest rates increase the demand for the currency of this country.
Reason 3: UNCERTAINTY around the future UK-EU relationship
- Markets DO NOT LIKE uncertainty! Investors prefer to invest in other countries than the UK and this lowers again the demand for GBP.
I hope you find the video helpful. Please leave me a comment to give me feedback or further questions.
If things works well, I would like to come back with new videos on “low interest rates and the policy challenges” they imply.
SEE YOU SOON?

One of the immediate consequences of the Brexit vote in June 2016 was the sharp depreciation of the pound against virtually all major currencies. The pound has not recovered since then and showed strong volatility during major political events (e.g. May’s October 2016 Speech, the announcement of the snap general election). It is striking that the UK government did not communicate much about the causes and consequences of the depreciation. In the general election campaign the depreciation was treated as an external ‘calamity’ and his painful consequences for the Brits were mostly excluded from the political debate.
The pound fell immediately following the Brexit vote as markets believed that UK economy would grow slower and be less productive after leaving the Single Market. The core belief was that the value of the pound would remain persistently low after Brexit. Thus, massive pound sell-offs followed the vote. The perverse effect of the sell-offs was immediate pound depreciation although the UK economy was doing ‘fairly’ good at that time.