Regulation of investor access to financial products is often based on product familiarity indicated by previous use. The underlying premise that lack of familiarity with a product class causes unwarranted participation is difficult to test. This paper uses household-level data from the...

Household access to financial products is often conditioned on previous use. However, banning access when learning is possible may be discriminatory or counterproductive. The 'experiment' of German reunification (exogenously) offered to East Germans unconditional access to (exogenously)...