The programme included an interview with a speaker introduced as representing “the free market think tank, the Institute of Economic Affairs”.   A listener complained that the programme failed to make clear that the IEA does not disclose the sources of its funding.  The ECU considered the complaint in the light of the BBC’s guidelines on impartiality, which say of such organisations as think tanks “Appropriate information about their affiliations, funding and particular viewpoints should be made available to the audience, when relevant to the context”.