Details about Nikolai Cook

Access statistics for papers by Nikolai Cook.

Last updated 2025-08-23. Update your information in the RePEc Author Service.

Short-id: pco986

Working Papers

2025

1. Comment on "Telementoring and Homeschooling during School Closures: A Randomized Experiment in Rural Bangladesh" by Hassan et al
   I4R Discussion Paper Series, The Institute for Replication (I4R) View citations (1)
2. Comparing Human-Only, AI-Assisted, and AI-Led Teams on Assessing Research Reproducibility in Quantitative Social Science
   I4R Discussion Paper Series, The Institute for Replication (I4R) View citations (1)
3. Media Stars: Statistical Significance and Research Impact
   IZA Discussion Papers, Institute of Labor Economics (IZA)
   Also in I4R Discussion Paper Series, The Institute for Replication (I4R) (2025)

2024

4. Do Pre-Registration and Pre-Analysis Plans Reduce p-Hacking and Publication Bias? Evidence from 15,992 Test Statistics and Suggestions for Improvement
   I4R Discussion Paper Series, The Institute for Replication (I4R) View citations (10)
   Also in GLO Discussion Paper Series, Global Labor Organization (GLO) (2023)
   See also Journal Article Do Preregistration and Preanalysis Plans Reduce p-Hacking and Publication Bias? Evidence from 15,992 Test Statistics and Suggestions for Improvement, Journal of Political Economy Microeconomics, University of Chicago Press (2024) View citations (12) (2024)
5. Mass Reproducibility and Replicability: A New Hope
   IZA Discussion Papers, Institute of Labor Economics (IZA) View citations (16)
   Also in I4R Discussion Paper Series, The Institute for Replication (I4R) (2024) View citations (16)

2023

6. The Origin of the State: Land Productivity or Appropriability?: Replication
   I4R Discussion Paper Series, The Institute for Replication (I4R)

2022

7. A Successful Replication of "Dust Pollution From the Sahara and African Infant Mortality"
   I4R Discussion Paper Series, The Institute for Replication (I4R)
8. Do Pre-Registration and Pre-analysis Plans Reduce p-Hacking and Publication Bias?
   GLO Discussion Paper Series, Global Labor Organization (GLO) View citations (6)
   Also in IZA Discussion Papers, Institute of Labor Economics (IZA) (2022) View citations (9)
   LCERPA Working Papers, Laurier Centre for Economic Research and Policy Analysis (2022) View citations (10)
   MetaArXiv, Center for Open Science (2022) View citations (3)
9. P-Hacking, Data Type and Data-Sharing Policy
   ECONtribute Discussion Papers Series, University of Bonn and University of Cologne, Germany View citations (1)
   Also in IZA Discussion Papers, Institute of Labor Economics (IZA) (2022) View citations (1)
   See also Journal Article p-Hacking, Data type and Data-Sharing Policy, The Economic Journal, Royal Economic Society (2024) View citations (10) (2024)
10. Pollution Pictures: Psychological Exposure to Pollution Impacts Worker Productivity in a Large-scale Field Experiment
    LCERPA Working Papers, Laurier Centre for Economic Research and Policy Analysis View citations (7)
    See also Journal Article Pollution pictures: Psychological exposure to pollution impacts worker productivity in a large-scale field experiment, Journal of Environmental Economics and Management, Elsevier (2022) View citations (7) (2022)
11. We Need to Talk about Mechanical Turk: What 22,989 Hypothesis Tests Tell Us about Publication Bias and p-Hacking in Online Experiments
    MetaArXiv, Center for Open Science View citations (5)
    Also in LCERPA Working Papers, Laurier Centre for Economic Research and Policy Analysis (2022) View citations (10)
    IZA Discussion Papers, Institute of Labor Economics (IZA) (2022) View citations (8)
12. We Need to Talk about Mechanical Turk: What 22,989 Hypothesis Tests Tell us about p-Hacking and Publication Bias in Online Experiments
    I4R Discussion Paper Series, The Institute for Replication (I4R) View citations (7)
    Also in GLO Discussion Paper Series, Global Labor Organization (GLO) (2022) View citations (7)

2021

13. On the Effects of COVID-19 Safer-At-Home Policies on Social Distancing, Car Crashes and Pollution
    GLO Discussion Paper Series, Global Labor Organization (GLO) View citations (17)
    Also in IZA Discussion Papers, Institute of Labor Economics (IZA) (2020) View citations (23)
    See also Journal Article On the effects of COVID-19 safer-at-home policies on social distancing, car crashes and pollution, Journal of Environmental Economics and Management, Elsevier (2021) View citations (21) (2021)

2018

14. Methods Matter: P-Hacking and Causal Inference in Economics
    Working Papers, University of Ottawa, Department of Economics View citations (40)

Journal Articles

2024

1. Do Preregistration and Preanalysis Plans Reduce p-Hacking and Publication Bias? Evidence from 15,992 Test Statistics and Suggestions for Improvement
   Journal of Political Economy Microeconomics, 2024, 2, (3), 527 - 561 View citations (12)
   See also Working Paper Do Pre-Registration and Pre-Analysis Plans Reduce p-Hacking and Publication Bias? Evidence from 15,992 Test Statistics and Suggestions for Improvement, I4R Discussion Paper Series (2024) View citations (10) (2024)
2. Increasing student access through aid: Differences in difference-in-differences estimates
   Economics Letters, 2024, 238, (C)
3. p-Hacking, Data type and Data-Sharing Policy
   The Economic Journal, 2024, 134, (659), 985-1018 View citations (10)
   See also Working Paper P-Hacking, Data Type and Data-Sharing Policy, ECONtribute Discussion Papers Series (2022) View citations (1) (2022)

2023

4. Clean Air and Cognitive Productivity: Effect and Adaptation
   Journal of the Association of Environmental and Resource Economists, 2023, 10, (5), 1265 - 1308 View citations (6)

2022

5. Methods Matter: p-Hacking and Publication Bias in Causal Analysis in Economics: Reply
   American Economic Review, 2022, 112, (9), 3137-39 View citations (6)
6. Pollution pictures: Psychological exposure to pollution impacts worker productivity in a large-scale field experiment
   Journal of Environmental Economics and Management, 2022, 114, (C) View citations (7)
   See also Working Paper Pollution Pictures: Psychological Exposure to Pollution Impacts Worker Productivity in a Large-scale Field Experiment, LCERPA Working Papers (2022) View citations (7) (2022)

2021

7. On the effects of COVID-19 safer-at-home policies on social distancing, car crashes and pollution
   Journal of Environmental Economics and Management, 2021, 106, (C) View citations (21)
   See also Working Paper On the Effects of COVID-19 Safer-At-Home Policies on Social Distancing, Car Crashes and Pollution, GLO Discussion Paper Series (2021) View citations (17) (2021)

2020

8. A Proposed Specification Check for p-Hacking
   AEA Papers and Proceedings, 2020, 110, 66-69 View citations (8)
9. Brain freeze: outdoor cold and indoor cognitive performance
   Journal of Environmental Economics and Management, 2020, 101, (C) View citations (25)
10. Methods Matter: p-Hacking and Publication Bias in Causal Analysis in Economics
    American Economic Review, 2020, 110, (11), 3634-60 View citations (153)

Software Items

2022

1. PHACK_DEROUND: Stata module to deround coefficients and standard errors for meta-analysis
   Statistical Software Components, Boston College Department of Economics