Guardian:
Does London mayor Sadiq Khan's Brexit report stack up?
11 January 2018
A no-deal Brexit would leave Britain’s economy diminished and its people poorer. That is the conclusion of the economic forecast commissioned by the mayor of London, Sadiq Khan from Cambridge Econometrics. It’s not the first report to argue that crashing out of the European Union would be bad for business, but it is one of the most comprehensive and draws on a wide range of existing studies. It concludes: “The more severe the type of Brexit, the greater the negative impact will be on the UK.”… The London School of Economics has showed how changes in tariffs and regulations can change the level of imports and exports. The Cambridge study used this study, but ditched widely held economic law, known as the gravity model, that argues countries trade with their neighbours first and foremost, in favour of simple cause and effect of trade barriers on current business relationships.
Related publication: Greater London Authority – ‘Preparing for Brexit’, Final Report from Cambridge Econometrics, January 2018 https://www.london.gov.uk/sites/default/files/preparing_for_brexit_final_report.pdf