Tweets

You blocked @m_clem

Are you sure you want to view these Tweets? Viewing Tweets won't unblock @m_clem

  1. Pinned Tweet
    Dec 1

    A typical family that’s poor by global standards is poor not because of who they are, but where they are. “The Place Premium: Bounding the Price Equivalent of Migration Barriers” My work with Montenegro & Pritchett, in final form at last

    Undo
  2. Retweeted
    8 hours ago

    I suggested that donors interested in supporting 's policy work consider donations to or ; my colleagues have other thoughtful suggestions:

    Undo
  3. Retweeted
    10 hours ago
    Undo
  4. Retweeted
    11 hours ago

    First of al, when you have to do a re-re-re-re-analysis of a single case study (Mariel boatlift) you’ve lost the war. Respectfully, Borjas should move on. Second, provides a remarkable lucid exposition of this messy back and forth.

    Undo
  5. “Jewish Persecutions and Weather Shocks: 1100–1800” By Anderson, Johnson, and

    Undo
  6. Retweeted

    Updating story. Here's the DOJ letter telling Congress that Whitaker was advised by ethics officials to recuse from the Mueller probe but decided not to.

    Show this thread
    Undo
  7. “Are Referees and Editors in Economics Gender Neutral?” By Card, , Funk, & Iriberri via

    Undo
  8. The US President’s **own Defense Secretary** has sent a clear message to those Constitutionally charged with overseeing the White House: The President’s coddling of enemies and spitting on friends has placed all Americans in danger. This is a national emergency.

    Undo
  9. GOP leaders appear to be realizing the danger.

    Undo
  10. Dec 20
    Undo
  11. Dec 20

    I think got this right: We have probably learned as much as we can about immigration and labor markets from the Mariel Boatlift. The new study, grasping for new ways to rehabilitate prior spurious findings, raises more questions than it answers.

    Show this thread
    Undo
  12. Dec 20

    If the help-wanted ads capture employment conditions, why the consensus finding of zero effect on unemployment? If the help-wanted ads capture wage conditions, why are the help-wanted effects identical for lower- and higher-skill, but the wage effects definitely are not?

    Show this thread
    Undo
  13. Dec 20

    But this new reanalysis using help-wanted ads finds a big decline in Miami, a decline that is indistinguishable between different skill levels.

    Show this thread
    Undo
  14. Dec 20

    Putting all these pieces together, you have an incoherent mess. The original reanalysis of David Card claimed to show that the Mariel Boatlift 1) had no effect on low-skill unemployment at all, but 2) sharply different effects on wages of different skill-levels.

    Show this thread
    Undo
  15. Dec 20

    If you dig to page 36 of the new paper using help-wanted ads, you find something remarkable: the decline of help-wanted ads in Miami was indistinguishable between ads for more-skilled and less-skilled jobs (!).

    Show this thread
    Undo
  16. Dec 20

    Remember that analysis identical to Borjas's shows that the Mariel Boatlift caused a large *rise* in wages for workers with high-school only (in red), relative to comparison cities (green) or prior trends (gray).

    Show this thread
    Undo
  17. Dec 20

    They use an index of help-wanted advertisements in newspapers. They find that the number of help-wanted ads in the Miami Herald fell after 1980 relative to newspapers in other cities. From this we only get more confusion.

    Show this thread
    Undo
  18. Dec 20

    Getting now to the new, re-re-re-re-re-re-analysis of the Mariel Boatlift now circulating, Borjas & co-authors are back with a different measure of labor market conditions:

    Show this thread
    Undo
  19. Dec 20

    Jenny Hunt and I do have an explanation, in our paper. There were major increases in the low-skill black population of Miami in 1980 due to the simultaneous arrival of immigrants from Haiti, and there were major changes in census data coverage of blacks. It is not a mystery.

    Show this thread
    Undo
  20. Dec 20

    The study's author has no explanation for this. When seminar participants challenge him about it, he reverts to accusing Jenny Hunt and me of somehow "manipulating the data"

    Show this thread
    Undo
  21. Dec 20

    This personal attack did nothing to alter the facts: The entire wage decline Borjas had seen, even in that tiny slice of low-skill Miami workers (just 9% of them, after discarding Hispanics, women, young, etc.), was explained by an unrelated change in sample composition.

    Show this thread
    Undo

Loading seems to be taking a while.

Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.

    You may also like

    ·