Possible consequences for Britain and the EU of a Brexit.

ECONOMY

Britain would no longer be subject to EU budget rules, which limit a government’s budget deficit to 3% of gross domestic product and public debt to 60% of GDP.It could therefore run whatever budget shortfall it wants without admonishment from the European Commission and other EU ministers. It would also be free from the Commission’s monitoring and advice on future actions.

FINANCE

Financial services firms based in Britain, from banks to clearing houses and funds, could lose their money-spinning EU “passports”, which allows them to sell services across the 28- nation bloc with low costs and a single set of rules.The passporting system has contributed to making London one of the world’s most important financial centres.Some American, Japanese and other non-European banks that have European headquarters in London have said they would consider moving parts of their business inside the European Union, in the event of a Brexit.

TRADE

The rest of the EU has a trade surplus in goods of about 100 billion euros ( US 110 billion) with Britain, while Britain exports some 20 billion euros in services than it imports, principally due to financial services. Brexit campaigners say if would be in the EU’s interest to agree a free trade deal with Britain even if it leaves the bloc. However, there tends to be more of a focus on goods than services in free trade deals. Switzerland, where financial services are a larger share of GDP than in Britain, has no general access to EU financial service markets and runs a financial services trade deficit with the block.

COMPETITION

British companies acquiring EU peers would still need approval from the UK competition watchdog and the European Commission, resulting in more legal costs and the risk that each delivers a different ruling. Britain will have a free hand to aid ailing companies or industries without fear of EU action but it will also not be able to oppose subsidies granted by EU governments to their own national champions.

ENERGY

Leaving the EU could make UK energy infrastructure investment costlier and delay new projects at a time when the country needs to plug a looming electricity supply gap.The uncertainty after Brexit could make energy investors demand higher returns for the risk of less favourable conditions. Oil and gas majors BP and Shell are among energy companies who warned about the potential downside.

AVIATION

Brexit could call into uestion EU agreements on open airspace that have granted the region’s airlines unlimited access to the skies of fellow member states, benefiting both UK and EU airlines. It would also affect transatlantic routes because of the EU-U.S. Open Skies agreement, which gives British airlines unlimited flying rights to the United States.