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Emptying the Tank: Getting the most out of Limited Data

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  • M. Scott Taylor

Abstract

All empirical researchers know that having more sources of variation in a dataset is valuable. What is not known is how valuable, and if the marginal value of adding another source of variation diminishes or increases. This note provides explicit answers to these questions. It defines "valuable" as the number of independent questions the data can potentially answer, and provides a surprisingly simple and useful rule that tells the researcher not only when they have "emptied the tank" of their data's valuable implications, but also the marginal value of further data collection. An illustration using home heating costs is provided.

Suggested Citation

  • M. Scott Taylor, 2018. "Emptying the Tank: Getting the most out of Limited Data," NBER Working Papers 24855, National Bureau of Economic Research, Inc.
    • Handle: RePEc:nbr:nberwo:24855
    Note: EEE
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    More about this item

    JEL classification:

    • A2 - General Economics and Teaching - - Economic Education and Teaching of Economics
    • Q0 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - General
    • Q4 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Energy

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