One problem, too many solutions: How costly is honest signalling of need?

• Szabolcs Számadó ,

  Roles Conceptualization, Formal analysis, Writing – original draft, Writing – review & editing

  * E-mail: szamszab@ludens.elte.hu

  Affiliations CSS-RECENS, MTA Centre for Social Science, Tóth Kálmán u. 4., Budapest, Hungary, Evolutionary Systems Research Group, MTA, Centre for Ecological Research, Hungarian Academy of Sciences, Tihany, Hungary

  http://orcid.org/0000-0003-2204-9705

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• Dániel Czégel,

  Roles Formal analysis, Writing – review & editing

  Affiliations Evolutionary Systems Research Group, MTA, Centre for Ecological Research, Hungarian Academy of Sciences, Tihany, Hungary, Department of Plant Systematics, Ecology and Theoretical Biology, Eötvös Loránd University, Budapest, Hungary, Deptartment of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA, United States of America, Center for the Conceptual Foundations of Science, Parmenides Foundation, Kirchplatz 1, Pullach, Munich, Germany

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• István Zachar

  Roles Formal analysis, Visualization, Writing – review & editing

  Affiliations Evolutionary Systems Research Group, MTA, Centre for Ecological Research, Hungarian Academy of Sciences, Tihany, Hungary, Center for the Conceptual Foundations of Science, Parmenides Foundation, Kirchplatz 1, Pullach, Munich, Germany, MTA-ELTE Theoretical Biology and Evolutionary Ecology Research Group, Eötvös Loránd University, Department of Plant Taxonomy and Ecology, Budapest, Hungary

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