In contemporary society it would seem self-evident that people allow the market to determine the values of products and services. For everything from a loaf of bread to a work of art to a simple haircut, value is expressed in monetary terms and seen as determined primarily by the 'objective' interplay between supply and demand. Yet this 'price-mechanism' is itself embedded in conventions and frames of reference which differed according to time, place and product type. Moreover, the dominan...