The proposition is examined that large-scale photocopying, such as that practiced by the British Library Lending Division, affects the sales of journals. It is concluded that economic difficulties experienced by journal publishers and the increased demand on the BLLD are unrelated, though both owe something to the economic pressure on libraries.…

The research reported suggests some ways in which economists could help themselves by rationalizing their literature, making better use of the bibliographic tools in existence and improving these tools. Ways librarians could do more to assist their readers are specified. (10 references) (Author/NH)

Demonstrates, with an example, a relatively simple method for fitting Bradford's law to empirical data to estimate the number of journals and articles in a subject collection. An exact discrete formulation illustrates Bradford's law as a special case of the Zipf-Mandlebrot "rank frequency" law. (Author/RAA)