IDEAS home Printed from https://ideas.repec.org/p/cwl/cwldpp/2127.html
   My bibliography  Save this paper

Toward an Ethical Experiment

Author

Abstract

Randomized Controlled Trials (RCTs) enroll hundreds of millions of subjects and involve many human lives. To improve subjects' welfare, I propose an alternative design of RCTs that I call Experiment-as-Market (EXAM). EXAM Pareto optimally randomly assigns each treatment to subjects predicted to experience better treatment effects or to subjects with stronger preferences for the treatment. EXAM is also asymptotically incentive compatible for preference elicitation. Finally, EXAM unbiasedly estimates any causal effect estimable with standard RCTs. I quantify the welfare, incentive, and information properties by applying EXAM to a water cleaning experiment in Kenya (Kremer et al., 2011). Compared to standard RCTs, EXAM substantially improves subjects' predicted well- being while reaching similar treatment effect estimates with similar precision.

Suggested Citation

  • Yusuke Narita, 2018. "Toward an Ethical Experiment," Cowles Foundation Discussion Papers 2127, Cowles Foundation for Research in Economics, Yale University.
    • Handle: RePEc:cwl:cwldpp:2127
    as

    Download full text from publisher

    File URL: https://cowles.yale.edu/sites/default/files/files/pub/d21/d2127.pdf
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Jinyong Hahn & Keisuke Hirano & Dean Karlan, 2011. "Adaptive Experimental Design Using the Propensity Score," Journal of Business & Economic Statistics, Taylor & Francis Journals, vol. 29(1), pages 96-108, January.
    2. James J. Heckman & Edward Vytlacil, 2005. "Structural Equations, Treatment Effects, and Econometric Policy Evaluation," Econometrica, Econometric Society, vol. 73(3), pages 669-738, May.
    3. Atila Abdulkadiroğlu & Joshua D. Angrist & Yusuke Narita & Parag A. Pathak, 2017. "Research Design Meets Market Design: Using Centralized Assignment for Impact Evaluation," Econometrica, Econometric Society, vol. 85, pages 1373-1432, September.
    4. Tat Y. Chan & Barton H. Hamilton, 2006. "Learning, Private Information, and the Economic Evaluation of Randomized Experiments," Journal of Political Economy, University of Chicago Press, vol. 114(6), pages 997-1040, December.
    5. Duflo, Esther & Glennerster, Rachel & Kremer, Michael, 2008. "Using Randomization in Development Economics Research: A Toolkit," Handbook of Development Economics, in: T. Paul Schultz & John A. Strauss (ed.), Handbook of Development Economics, edition 1, volume 4, chapter 61, pages 3895-3962, Elsevier.
    6. Nava Ashraf & Dean Karlan & Wesley Yin, 2006. "Tying Odysseus to the Mast: Evidence From a Commitment Savings Product in the Philippines," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 121(2), pages 635-672.
    7. Abadie, Alberto & Athey, Susan & Imbens, Guido W. & Wooldridge, Jeffrey M., 2017. "Sampling-Based vs. Design-Based Uncertainty in Regression Analysis," Research Papers 3349, Stanford University, Graduate School of Business.
    8. Sylvain Chassang & Gerard Padro I Miquel & Erik Snowberg, 2012. "Selective Trials: A Principal-Agent Approach to Randomized Controlled Experiments," American Economic Review, American Economic Association, vol. 102(4), pages 1279-1309, June.
    9. Jackson, Matthew O., 1992. "Incentive compatibility and competitive allocations," Economics Letters, Elsevier, vol. 40(3), pages 299-302, November.
    10. Train,Kenneth E., 2009. "Discrete Choice Methods with Simulation," Cambridge Books, Cambridge University Press, number 9780521766555, January.
    11. Michael Kremer & Jessica Leino & Edward Miguel & Alix Peterson Zwane, 2011. "Spring Cleaning: Rural Water Impacts, Valuation, and Property Rights Institutions," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 126(1), pages 145-205.
    12. Nava Ashraf & James Berry & Jesse M. Shapiro, 2010. "Can Higher Prices Stimulate Product Use? Evidence from a Field Experiment in Zambia," American Economic Review, American Economic Association, vol. 100(5), pages 2383-2413, December.
    13. Joshua D. Angrist, 1998. "Estimating the Labor Market Impact of Voluntary Military Service Using Social Security Data on Military Applicants," Econometrica, Econometric Society, vol. 66(2), pages 249-288, March.
    14. Pascaline Dupas, 2014. "Short‐Run Subsidies and Long‐Run Adoption of New Health Products: Evidence From a Field Experiment," Econometrica, Econometric Society, vol. 82(1), pages 197-228, January.
    15. Johannes Haushofer & Jeremy Shapiro, 2016. "The Short-term Impact of Unconditional Cash Transfers to the Poor: ExperimentalEvidence from Kenya," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 131(4), pages 1973-2042.
    16. Eric Budish & Yeon-Koo Che & Fuhito Kojima & Paul Milgrom, 2013. "Designing Random Allocation Mechanisms: Theory and Applications," American Economic Review, American Economic Association, vol. 103(2), pages 585-623, April.
    17. Yinghua He & Antonio Miralles & Marek Pycia & Jianye Yan, 2018. "A Pseudo-Market Approach to Allocation with Priorities," American Economic Journal: Microeconomics, American Economic Association, vol. 10(3), pages 272-314, August.
    18. S. A. Murphy, 2003. "Optimal dynamic treatment regimes," Journal of the Royal Statistical Society Series B, Royal Statistical Society, vol. 65(2), pages 331-355, May.
    19. Bogomolnaia, Anna & Moulin, Herve, 2001. "A New Solution to the Random Assignment Problem," Journal of Economic Theory, Elsevier, vol. 100(2), pages 295-328, October.
    20. Florencia Devoto & Esther Duflo & Pascaline Dupas & William Parienté & Vincent Pons, 2012. "Happiness on Tap: Piped Water Adoption in Urban Morocco," American Economic Journal: Economic Policy, American Economic Association, vol. 4(4), pages 68-99, November.
    21. Berry, Steven & Levinsohn, James & Pakes, Ariel, 1995. "Automobile Prices in Market Equilibrium," Econometrica, Econometric Society, vol. 63(4), pages 841-890, July.
    22. Jessica Cohen & Pascaline Dupas, 2010. "Free Distribution or Cost-Sharing? Evidence from a Randomized Malaria Prevention Experiment," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 125(1), pages 1-45.
    23. Imbens,Guido W. & Rubin,Donald B., 2015. "Causal Inference for Statistics, Social, and Biomedical Sciences," Cambridge Books, Cambridge University Press, number 9780521885881.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Eszter Czibor & David Jimenez‐Gomez & John A. List, 2019. "The Dozen Things Experimental Economists Should Do (More of)," Southern Economic Journal, John Wiley & Sons, vol. 86(2), pages 371-432, October.
    2. Martin Ravallion, 2021. "On the Gains from Tradeable Benefits-in-Kind," Working Papers gueconwpa~21-21-13, Georgetown University, Department of Economics.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Yusuke Narita, 2018. "Experiment-as-Market: Incorporating Welfare into Randomized Controlled Trials," Cowles Foundation Discussion Papers 2127r, Cowles Foundation for Research in Economics, Yale University, revised May 2019.
    2. Sylvain Chassang & Gerard Padro I Miquel & Erik Snowberg, 2012. "Selective Trials: A Principal-Agent Approach to Randomized Controlled Experiments," American Economic Review, American Economic Association, vol. 102(4), pages 1279-1309, June.
    3. Peters, Jörg & Langbein, Jörg & Roberts, Gareth, 2016. "Policy evaluation, randomized controlled trials, and external validity—A systematic review," Economics Letters, Elsevier, vol. 147(C), pages 51-54.
    4. Jörg Peters & Jörg Langbein & Gareth Roberts, 2018. "Generalization in the Tropics – Development Policy, Randomized Controlled Trials, and External Validity," The World Bank Research Observer, World Bank, vol. 33(1), pages 34-64.
    5. Paulina Oliva & B. Kelsey Jack & Samuel Bell & Elizabeth Mettetal & Christopher Severen, 2020. "Technology Adoption under Uncertainty: Take-Up and Subsequent Investment in Zambia," The Review of Economics and Statistics, MIT Press, vol. 102(3), pages 617-632, July.
    6. Meredith, Jennifer & Robinson, Jonathan & Walker, Sarah & Wydick, Bruce, 2013. "Keeping the doctor away: Experimental evidence on investment in preventative health products," Journal of Development Economics, Elsevier, vol. 105(C), pages 196-210.
    7. Nikhil Agarwal & Eric Budish, 2021. "Market Design," NBER Working Papers 29367, National Bureau of Economic Research, Inc.
    8. Whittington, Dale & Jeuland, Marc & Barker, Kate & Yuen, Yvonne, 2012. "Setting Priorities, Targeting Subsidies among Water, Sanitation, and Preventive Health Interventions in Developing Countries," World Development, Elsevier, vol. 40(8), pages 1546-1568.
    9. Burchardi, Konrad B. & de Quidt, Jonathan & Gulesci, Selim & Lerva, Benedetta & Tripodi, Stefano, 2021. "Testing willingness to pay elicitation mechanisms in the field: Evidence from Uganda," Journal of Development Economics, Elsevier, vol. 152(C).
    10. Abhijit Banerjee & Sylvain Chassang & Erik Snowberg, 2016. "Decision Theoretic Approaches to Experiment Design and External Validity," NBER Working Papers 22167, National Bureau of Economic Research, Inc.
    11. Hoffmann, Bridget, 2018. "Do non-monetary prices target the poor? Evidence from a field experiment in India," Journal of Development Economics, Elsevier, vol. 133(C), pages 15-32.
    12. Bhattacharya, Debopam & Dupas, Pascaline, 2012. "Inferring welfare maximizing treatment assignment under budget constraints," Journal of Econometrics, Elsevier, vol. 167(1), pages 168-196.
    13. Jacopo Bonan & Stefano Pareglio & Massimo Tavoni, 2014. "Access to Modern Energy: a Review of Impact Evaluations," Working Papers 2014.96, Fondazione Eni Enrico Mattei.
    14. Karthik Muralidharan & Mauricio Romero & Kaspar Wüthrich, 2019. "Factorial Designs, Model Selection, and (Incorrect) Inference in Randomized Experiments," NBER Working Papers 26562, National Bureau of Economic Research, Inc.
    15. James Berry & Greg Fischer & Raymond Guiteras, 2020. "Eliciting and Utilizing Willingness to Pay: Evidence from Field Trials in Northern Ghana," Journal of Political Economy, University of Chicago Press, vol. 128(4), pages 1436-1473.
    16. Matthew Krupoff & Ahmed Mushfiq Mobarak & Alexander van Geen, 2020. "Evaluating Strategies to Reduce Arsenic Poisoning in South Asia: A View from the Social Sciences," Asian Development Review, MIT Press, vol. 37(2), pages 21-44, September.
    17. Burchardi, Konrad & de Quidt, Jonathan & Gulesci, Selim & Sulaiman, Munshi, 2021. "Credit Constraints and Demand for Remedial Education: Evidence from Tanzania," CEPR Discussion Papers 15862, C.E.P.R. Discussion Papers.
    18. B Kelsey Jack, "undated". "Market Inefficiencies and the Adoption of Agricultural Technologies in Developing Countries," CID Working Papers 50, Center for International Development at Harvard University.
    19. Vinish Shrestha & Rashesh Shrestha, 2018. "The Combined Role of Subsidy and Discussion Intervention in Demand for a Stigmatized Products," Working Papers 2018-05, Towson University, Department of Economics, revised Apr 2023.
    20. Tianshu Sun & Lanfei Shi & Siva Viswanathan & Elena Zheleva, 2019. "Motivating Effective Mobile App Adoptions: Evidence from a Large-Scale Randomized Field Experiment," Information Systems Research, INFORMS, vol. 30(2), pages 523-539, June.

    More about this item

    Keywords

    Research Ethics; Clinical Trial; Social Experiment; A/B Test; Market Design; Causal Inference; Development Economics; Spring Protection; Discrete Choice;
    All these keywords.

    NEP fields

    This paper has been announced in the following NEP Reports:

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:cwl:cwldpp:2127. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Brittany Ladd (email available below). General contact details of provider: https://edirc.repec.org/data/cowleus.html .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.