In the city of Glasgow, Scotland, trade doubled between 1 750, when the first bank opened there, and 1 765, when government regulations on banking were first implemented in Scotland. Each of the following, if true, could contribute to an explanation of the doubling described above EXCEPT: ['The technological revolution that started in the early eighteenth century in England resulted in increased trade between England and Scotland.', 'Reductions in tariffs on foreign goods in 1752 led to an increase in imports to Glasgow.', "The initial government regulation of Scottish banks stimulated Glasgow's economy.", 'Improvements in Scottish roads between 1750 and 1758 facilitated trade between Glasgow and the rest of Scotland.']