This paper has been published in the Journal of Economic Behavior and Organization:
The citation is:
van der Weele, Joël J., and Ferdinand A. von Siemens. "Bracelets of pride and guilt? An experimental test of self-signaling." Journal of Economic Behavior & Organization 172 (2020): 280-291.
The PDF shared on this page is virtually identical to the published version and includes the experimental instructions towards the end of the document.
Note that a previous version of the paper with only the first study was circulated as CESifo Working Paper Nr. 4674 under the title of ``Bracelets of Pride and Guilt? An Experimental Test of Self-Signaling in Charitable Giving.