At this moment I am struggling with a project about Brexit and especially about international economic issues within this matter. I have five bigger questions based on elements such as: the EU as a single market, trade theory, welfare effects, economies of scale and exchange rates that I need help to fully explain, evaluate and analyze. My background knowledge is based on the first 17 chapters of the book: International Economics: Theory and Policy, Global Edition, 11. Edition, ISBN-10: 1292214996, ISBN-13: 9781292214993 by Krugman, P.R. M. Obstfeld and M.J. Melitz (2017). Is there anyone able to help me through these five questions Monday (18.01.21) from 9 o'clock (Danish time)?