<P> Most economists , including the UK Treasury , argue that being in the EU has a strong positive effect on trade and as a result the UK 's trade would be worse off if it left the EU . Surveys of leading economists show overwhelming agreement that Brexit will likely reduce the UK 's real per - capita income level . A 2017 survey of existing academic literature found `` the research literature displays a broad consensus that in the long run Brexit will make the United Kingdom poorer because it will create new barriers to trade , foreign direct investment , and immigration . However , there is substantial uncertainty over how large the effect will be , with plausible estimates of the cost ranging between 1 and 10 percent of the UK 's income per capita . '' These estimates differ depending on whether the UK stays in the European Single Market ( for instance , by joining the EEA ) , makes a free trade agreement with the EU , or reverts to the trade rules that govern relations between all World Trade Organization members . Prior to the referendum , the UK treasury estimated that leaving the EU would be bad for the UK 's trade . </P>
<P> Most economists , including the UK Treasury , argue that being in the EU has a strong positive effect on trade and as a result the UK 's trade would be worse off if it left the EU . Surveys of leading economists show overwhelming agreement that Brexit will likely reduce the UK 's real per - capita income level . A 2017 survey of existing academic literature found `` the research literature displays a broad consensus that in the long run Brexit will make the United Kingdom poorer because it will create new barriers to trade , foreign direct investment , and immigration . However , there is substantial uncertainty over how large the effect will be , with plausible estimates of the cost ranging between 1 and 10 percent of the UK 's income per capita . '' These estimates differ depending on whether the UK stays in the European Single Market ( for instance , by joining the EEA ) , makes a free trade agreement with the EU , or reverts to the trade rules that govern relations between all World Trade Organization members . Prior to the referendum , the UK treasury estimated that leaving the EU would be bad for the UK 's trade . </P>
what is the impact of brexit on the uk economy
what is the impact of brexit on the uk economy
likely reduce the UK 's real per - capita income level
likely reduce the UK 's real per - capita income level