To provide a longer-lasting contribution to this debate, the IEA decided to publish this monograph examining the various options using, in the main, entries to the British Exit ('Brexit') competition. There was a wide range of possible approaches suggested by entrants to that competition.Some proposed that Britain should promote free trade and openness through the unilateral removal of trade and other barriers to economic activity; others proposed maintaining formal relationships with European countries through the European Free Trade Association and/or the European Economic Area; still other entrants took the view that Britain should seek to form economic and political alliances and partnerships with countries outside Europe - for example with the Commonwealth or the --Anglosphere - normally with a view to that being a gateway to free trade with as much of the world as would be willing.