@article{UBHD-68640344,
  author={Artinger, Florian and Exadaktylos, Filippos and Koppel, Hannes and S{\"a}{\"a}ksvuori, Lauri},
  title={In others' shoes},
  subtitle={do individual differences in empathy and theory of mind shape social preferences?},
  year={2014},
  language={eng},
  issn={1932-6203},
  volume={9(2014},
  note={Gesehen am 25.09.2020},
  journal={PLOS ONE},
  doi={10.1371/journal.pone.0092844},
}
@article{UBHD-68626678,
  author={Freytag, Andreas and G{\"u}th, Werner and Koppel, Hannes and Wangler, Leo},
  title={Is regulation by milestones efficiency enhancing?},
  subtitle={ An experimental study of environmental protection},
  year={2014},
  pages={71-84},
  language={eng},
  issn={1873-5703},
  volume={33},
  note={Online 9 December 2013 ; Gesehen am 12.08.2020},
  journal={European journal of political economy},
  doi={10.1016/j.ejpoleco.2013.11.005},
}
@article{UBHD-67955796,
  author={Koppel, Hannes and Regner, Tobias},
  title={Corporate social responsibility in the work place},
  subtitle={experimental evidence from a gift-exchange game},
  year={2014},
  pages={347-370},
  language={eng},
  issn={1573-6938},
  volume={17},
  number={3},
  note={Gesehen am 15.03.2016},
  journal={Experimental economics},
  doi={10.1007/s10683-013-9372-x},
}
@article{UBHD-67955799,
  author={Koppel, Hannes and Schulze, G{\"u}nther G.},
  title={The importance of the indirect transfer mechanism for consumer willingness to pay for fair trade products},
  subtitle={evidence from a natural field experiment},
  year={2013},
  pages={369-387},
  language={eng},
  issn={1573-0700},
  volume={36},
  number={4},
  note={Gesehen am 15.03.2016},
  journal={Journal of consumer policy},
  doi={10.1007/s10603-013-9234-0},
}