  We conduct a laboratory experiment using framing to assess the willingness to
``sell a lemon'', i.e., to undertake an action that benefits self but hurts the
other (the ``buyer''). We seek to disentangle the role of other-regarding
preferences and (Kantian) moral concerns, and to test if it matters whether the
decision is described in neutral terms or as a market situation. When
evaluating an action, morally motivated individuals consider what their own
payoff would be if -- hypothetically -- the roles were reversed and the other
subject chose the same action (universalization). We vary the salience of role
uncertainty, thus varying the ease for participants to envisage the
role-reversal scenario.
