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About Migration Dialogue

Migration Dialogue provides timely, factual and nonpartisan information and analysis of international migration issues through five major activities: the newsletters Migration News and Rural Migration News, Changing Face and other Research & Seminars, and the Sloan West Coast Program on Science and Engineering Workers.

Contact us at migrant@primal.ucdavis.edu.

Migration News: Would More Migration raise Global GDP?

Would the world's GDP double or triple if border controls were lifted and migrants moved from lower-to-higher wage countries? Several studies have concluded the answer is yes, so that maintaining border controls is equivalent to leaving "trillion dollar bills on the sidewalk."

The economic reasoning behind projections of huge increases in global GDP with more migration rest on a simple proposition. Wages reflect the value of the marginal contributions of workers to what they help to produce. Since more capital and better infrastructure make workers more productive in richer countries, workers who move from poorer to richer countries earn higher wages.

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  • Migration News

    Migration News

    Migration News is produced with the support of the John D. and Catherine T. MacArthur Foundation, the Alfred P. Sloan Foundation, and UCB Institute of European Studies. A paper edition is available by mail for $30 domestic and $50 foreign for one year and $55 and $95 for two years. Make checks payable to Migration Dialogue and send to

    Philip Martin, Department of Ag and Resource Economics, University of California, Davis, California 95616 USA.
  • Rural Migration News

    Rural Migration News

    Rural Migration News is produced with the support of the Colcom, Farm, and Giannini Foundations. A paper edition is available by mail for $30 domestic and $50 foreign for one year and $55 and $95 for two-years. Make checks payable to Migration Dialogue and send to

    Philip Martin, Department of Ag and Resource Economics, University of California, Davis, California 95616 USA.
  • Sloan Program On Science and Engineering Workers

    Sloan West Coast Program On S&E Workers

    This network of researchers hosts seminars on labor and immigration issues affecting science and engineering workers, compiles and distributes information on these issues, and cooperates closely with the NBER's SEWP.

  • Changing Face

    Changing Face

    The Changing Face project assesses the effects of immigrant farm workers on agriculture and agricultural communities.

  • Research & Seminars

    Research & Seminars

    Include Opinion Leader Seminars, the Comparative Immigration and Integration Program, and Transatlantic Migration Policy Issue seminars.