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The University of Oklahoma Libraries (Norman, Oklahoma, USA) recently launched a staff development strategy to recruit new librarians by promoting staff currently enrolled in a graduate library science program. Paid at a rate higher than paraprofessionals, but lower than traditional faculty, these employees are given professional duties for no more than two years. Appointees are expected to continue steady progress toward completion of a Master of Library and Information Studies (MLIS) degree. This strategy targets the “best and brightest” students for recruitment into permanent positions after their graduation and encourages paraprofessionals to enter the profession. It also identifies one potential solution to recruitment problems in all types of libraries in the USA as the profession confronts serious shortages in trained librarians.

During the last decade or so, philosophers of science have shown increasing interest in scientific models and modeling. The primary impetus seems to have come from the philosophy of biology, but increasingly the philosophy of economics has been drawn into the discussion. This paper will focus on the particular subset of this literature that emphasizes the difference between a scientific model being explanatory and one that provides explanations of specific events. The main differences are in the structure of the models and the characteristics of the explanatory target. Traditionally, scientific explanations have been framed in terms of explaining particular events, but many scientific models have targets that are hypothetical patterns: “patterns of macroscopic behavior across systems that are heterogeneous at smaller scales” (Batterman & Rice, 2014, p. 349). The models with this characteristic are often highly idealized, and have complex and heterogeneous targets; such models are “central to a kind of modeling that is widely used in biology and economics” (Rohwer & Rice, 2013, p. 335). This paper has three main goals: (i) to discuss the literature on such models in the philosophy of biology, (ii) to show that certain economic phenomena possess the same degree of heterogeneity and complexity often encountered in biology (and thus, that hypothetical pattern explanations may be appropriate in certain areas of economics), and (iii) to demonstrate that Hayek’s arguments about “pattern predictions” and “explanations of the principle” are essentially arguments for the importance of this type of modeling in economics.

Strategic group theory has two distinct aspects. The first is a resemblance among firms grounded in a common pattern of investment; the second is a mutual dependence among firms in the strategic group. Each aspect is analyzed to develop implications for research generally and multi-level research particularly.

The conclusion of the Cold War's U.S.‐Soviet superpower rivalry may have ended the threat of a global nuclear military confrontation involving these powers. It did not, however, result in the termination of international regional conflicts or of military threats to U.S. national security. The collapse of a world political and strategic system ostensibly polarized between two ideologically contrasting superpowers has resulted in the emergence of numerous threats to regional and global order.

THERE was a rather remarkable statement made at the Royal Institute of British Architects by Mr. Berwick Sayers last month. He affirmed that so far as the recorded issues of the reference libraries in the municipal libraries of London were concerned, only 8,880 books were consulted daily. This, as the statistical account of twenty‐nine public libraries, shows an average of a fraction over 302 books daily. To some this may seem not an inadequate issue, if all the books recorded are books which the student and the searcher for information have used. The point of the meeting at which the remark was made was that the reference libraries of London should do more in co‐operation with industry, and it was argued by the representatives of ASLIB who took part in the conference that our London reference libraries should be strengthened in the science and technology departments, even at the expense of the lending libraries. The experience of the public librarian seemed to be that few people lived in London near their work; and that they had command of the special libraries in London in a way that provincial industrialists had not, and therefore they did not make any use that mattered of London reference libraries. The Chambers of Commerce in the various boroughs of London consist of small traders as a rule whose main purpose is “to keep down the rates,” and who have very little connection with industry on the scale in the minds of the ASLIB representatives. In short, the chief function of the London public libraries is mainly that of home reading. Ultimately the solution of the reference problem may be the establishment of one or two great regional reference libraries supported by the co‐operation of the boroughs. Co‐operation, however, is in its initial stages yet, and it will probably be some time before such an ideal, if it be an ideal, is achieved.

A LETTER from the President of the Library Association (Mr. Berwick Sayers) has been received which we have pleasure in giving prominently.

THE inaugural meeting of the London and Home Counties Branch of the Library Association shows great promise for the future. The fact that between 70 and 80 members and friends attended this meeting only goes to prove that energy and stimulus only were needed to make the monthly meetings of the parent body successful ventures.