The document discusses how Brexit will negatively impact the UK's macroeconomy. Brexit refers to the UK leaving the European Union. Leaving the EU will cause the UK to exit free trade agreements, breaking many of the regulations and legal structures underpinning the British economy. This will lead to economic volatility as trade that makes up 80% of the UK's worldwide commerce will be disrupted. Specific issues that may arise include a drop in foreign investment, a weakened British pound, and rising inflation.