SBXI - Secondhand Books Exchange Index

At Midnight Oil Books, we have sometimes bemoaned the lack of uptodate price fluctuation information for secondhand and antiquarian books. To this end we are keen to trial a new price index, the SBXI, which will take a starting value of 100 as of the Monday, 4th August 2008. The initial figures are based on our own data and the index will be updated on Mondays and Thursdays every week.

Monday, 4th August 2008 at 12.00noon GMT

100

If you would like to participate in the project, please let us know. We are very keen that sensitive information such as the profitability of individual firms be kept from the market place. To this end we have produced a downloadable calculator which returns a single number value for secondhand book sales aggregated over a certain time period. The algorithm is not reversable except in the case of exceptionally low sales figures.