In this paper we report a search for intermediate mass magnetic monopoles and nuclearites using CR39 and Makrofol Nuclear Track Detectors (NTDs) of the SLIM large area experiment, 440 m exposed at the high altitude laboratory of Chacaltaya (Bolivia) and about 100 m at Koksil, Himalaya (Pakistan). We discuss the new chemical etching and improved analysis of the SLIM CR39 sheets. Preliminary limi...

Buyers’ Alliances for Bargaining Power by Suchan Chae and Paul Heidhues We provide a novel explanation as to why forming an alliance of buyers (or sellers) across separate markets can be advantageous when input prices are determined by bargaining. Our explanation helps to understand the prevalence of buyer cooperatives among small and medium sized firms.

We sent a questionnaire survey to a random sample of 125 correspondents to the BMJ who had previously sent a letter which had been rejected. The objective was to evaluate the policy of sending on some unpublished letters to the authors of the articles to which they referred. There were 94 replies, a response rate of 75%. The key finding was that although most respondents agreed with the policy,...