Should Countries be Like Open Clubs?

Should existing residents of a country have a right to control who joins them or should countries be like open clubs? Martin Wolf, a columnist, and Willem Buiter, a blogger, both from the Financial Times, present two opposing views, raising both positive and normative issues related to immigration policy. Although prompted by a recent report of the House of Lords select committee on Economic Affairs on the impact of immigration on the UK economy, their discussion is broad enough to be of interest to any reader.