Distinguishing Useful and Wasteful Slack

• Peter Bogetoft

  Corresponding Author

  Peter Bogetoft

  [email protected]

  https://orcid.org/0000-0002-2173-2791

  Department of Economics, Copenhagen Business School, 2000 Frederiksberg, Denmark;

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  ,
• Pieter Jan Kerstens

  Pieter Jan Kerstens

  [email protected]

  https://orcid.org/0000-0002-4368-0259

  Department of Economics, Katholieke Universiteit Leuven & SCT, Flemish Institute for Technological Research, 2400 Mol, Belgium

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