1 Erratum to: Business Research (2015) 8:39–59 DOI 10.1007/s40685-014-0017-5

In the original publication, the authors are referring to a spreadsheet which should have been provided online as electronic supplementary material:

“Figure 5 in Appendix A shows the detailed spreadsheet (the MS Excel™ sheet containing all formulae is also provided as supplementary material to this article).”

Unfortunately, this supplementary material had been omitted in the original publication.