New: JSTOR E-books in DDA Model

Dr. Rainer Rees, 28. August 2015

The e-books on JSTOR come from well renowned scholarly publishers. From now on, Lib4RI users have access to about 2,700 e-books on the JSTOR platform. This number will be growing monthly as access to newly published titles will be installed automatically upon online publication. The advanced search option on the JSTOR allows for the restriction of the search to e-books.

The acquisition model we chose for the JSTOR books is a so-called Demand Driven Acquisition (DDA) model. This means that Lib4RI does initially not buy the e-books, but the users still have full access to them. An actual purchase is then triggered by the repeated usage of a book. This acquisition model is from our point of view advantageous compared to the traditional acquisition of whole e-book collections. Even if an e-book collection is in a core research area of the four research institutes, the usage of single e-books in a collection is hardly predictable and non-usage of some titles is unavoidable. This is even more true for sideline research topics, which can also be included in a DDA model. In a DDA model the library buys only books that are actually used, thereby saving the money for unused books.

Unfortunately, until now there are only few publishers who offer DDA models at acceptable conditions. Besides with JSTOR Lib4RI has a DDA model for de Gruyter e-books and journals.

We appreciate your feedback on the JSTOR DDA model at


Stephanie Hofmann

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Jason Dey

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Dr. Bobby Neuhold

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Dr. Lothar Nunnenmacher

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