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David McKenzie
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David McKenzie
@dmckenzie001
World Bank researcher focusing on small businesses and migration & impact evaluation methods, Development Impact blogger, ...
sites.google.com/site/decrgdmck…
Joined December 2011
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    David McKenzie
    @dmckenzie001
    Jan 21, 2020
    Is your difference-in-differences reading list also getting really long? In today's post I summarize several papers that revisit the parallel trends assumption and what we learn from testing it holds in the pre-intervention periods
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    Revisiting the Difference-in-Differences Parallel Trends Assumption: Part I Pre-Trend Testing
    From blogs.worldbank.org
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    David McKenzie
    @dmckenzie001
    Nov 10, 2019
    I'm about halfway through Banerjee and Duflo's Good Economics for Hard Times, and thought I'd reflect on the quite stark difference in the way they think about migration versus trade 1/21
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    David McKenzie
    @dmckenzie001
    Sep 30, 2019
    What Are We Estimating When We Estimate Difference-in-Differences? Today on Development Impact @PJakiela summarizes @agoodmanbacon 's paper blogs.worldbank.org/impactevaluati…
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    David McKenzie
    @dmckenzie001
    Jan 24, 2022
    Explaining why we should believe your DiD assumptions - economists have beefed up their statistical case for the validity of difference-in-differences, but still need to work on making an economic and rhetorical case. I take 3 recent QJE papers as examples
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    Explaining why we should believe your DiD assumptions
    From blogs.worldbank.org
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    David McKenzie
    @dmckenzie001
    Jul 17, 2023
    Motivated by a @MarshallBBurke question & @jhaushofer request, I've written up 7 ways you can improve power in an experiment without increasing the sample size n (number 4 may surprise you by saying you might want to reduce n) blogs.worldbank.org/impactevaluati… 1/3
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    Seven ways to improve statistical power in your experiment without increasing n
    From blogs.worldbank.org
    74K
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    David McKenzie
    @dmckenzie001
    Jan 4, 2023
    Remembering Martin Ravallion: Berk Ozler and I celebrate the life and work of @MartinRavallion, who sadly died over the holiday break. He was an inspiration to both of us. blogs.worldbank.org/impactevaluati…
    83K
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    David McKenzie
    @dmckenzie001
    Oct 3, 2022
    A crowd-sourced checklist of the top 10 little things that drive us crazy with regression output
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    A crowd-sourced checklist of the top 10 little things that drive us crazy with regression output
    From blogs.worldbank.org
  • user avatar
    David McKenzie
    @dmckenzie001
    Feb 3, 2020
    Today in part 2 of my attempt to catch up on the new DiD literature: Revisiting the Difference-in-Differences Parallel Trends Assumption: Part II What happens if the parallel trends assumption is (might be) violated?
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    Revisiting the Difference-in-Differences Parallel Trends Assumption: Part II What happens if the...
    From blogs.worldbank.org
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    David McKenzie
    @dmckenzie001
    Jan 10, 2022
    A new synthesis and key lessons from the recent difference-in-differences literature - I summarize the great new overview paper by @jondr44 @pedrohcgs @ambilinski & @DavidPoe223 and offer my takeaways plus what the literature still does not do well.
    blogs.worldbank.org
    A new synthesis and key lessons from the recent difference-in-differences literature
    Lessons on dealing with multiple periods and staggered timing, relaxing the parallel trends assumption, and taking a design-based approach to dealing with not sampling from a super-population.
  • user avatar
    David McKenzie
    @dmckenzie001
    Aug 22, 2021
    Replying to @BrunoGili1 @franciscome and @eduardoyeyati
    Honestly I have no clue which report they are referring to here, and was surprised to see my name there. I haven’t put anything out recently on this.
  • user avatar
    David McKenzie
    @dmckenzie001
    Nov 14, 2022
    Why do so many small firms in developing countries selling the same product locate next to one another? The first in our job market series this year has @anni_vitali explaining agglomeration and the role of information frictions
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    Better Together: How does consumers’ search behavior affect firm agglomeration within cities? Guest...
    From blogs.worldbank.org
  • user avatar
    David McKenzie
    @dmckenzie001
    Aug 31, 2021
    Students, email your old profs every once in a while, they will love it. I had to write a couple of recommendation letters today, & happened to see ones I had written 15 years or so ago. I did a quick search and was delighted to see what these students were doing now 1/2
  • user avatar
    David McKenzie
    @dmckenzie001
    May 23, 2022
    Development journals received more than 10,000 paper submissions in 2021. How many made it to referees? How long do different journals take in decisions? What are the acceptance rates? My annual overview of stats from different journals is now up
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    The State of Development Journals 2022: Quality, Acceptance Rates, Review Times, and What’s New
    From blogs.worldbank.org
  • user avatar
    David McKenzie
    @dmckenzie001
    Nov 7, 2022
    What’s the Latest Research in Development Economics? A Roundup from NEUDC 2022 - a classic @DaveEvansPhD & @Almedina1Music round-up of 135 conference papers
    blogs.worldbank.org
    What’s the Latest Research in Development Economics? A Roundup from NEUDC 2022
    A summary of the many papers presented at this year's NEUDC conference

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