… that the backstop would come into play on Jan. 1, 2021, after the agreed transition period ends, and remain in … no-deal, no-transition exit would cause the GDP to be 8 to 10 percent lower by the end of 2023 than the projected GDP … YouGov survey of 20,910 citizens conducted between Nov. 27 and Dec. 4, remaining in the EU was the first preference …