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Article
Publication date: 21 September 2015

Yudhvir Seetharam and James Britten

The purpose of this paper is to expand on the sparse literature on non-linear modelling in South Africa and test for non-linearity of the market cycle on the Johannesburg Stock…

282

Abstract

Purpose

The purpose of this paper is to expand on the sparse literature on non-linear modelling in South Africa and test for non-linearity of the market cycle on the Johannesburg Stock Exchange, with specific focus on a particular non-linear model – a Smooth Transition Auto-Regressive (STAR) model.

Design/methodology/approach

Non-linear estimation methods are used to describe the market cycle, as defined by equity prices, for the period 1998-2010.

Findings

In applying the STAR model to daily, weekly and monthly returns data, it was found that the fit of this family of models differs heavily based on the frequency of data used. The daily Logarithmic STAR (LSTAR) model was found to be the best fit relative to other data frequencies. Indeed, the weekly LSTAR model, while still appropriate to use, was less apt at forecasting than its daily counterpart. Monthly return data indicated that a linear AR model was more appropriate than a non-linear one.

Practical implications

The results assist in understanding the cyclical nature of emerging markets as well contributing to the understanding of creating a portfolio consisting of international securities. If one can show that equity returns in a particular emerging market follow non-linear behaviour, expanding this hypothesis to other emerging markets enables a minimum variance portfolio to be constructed that is informed by returns changing over time.

Originality/value

The findings can be used for further research into share price modelling, portfolio management and perhaps as an avenue into the reasoning behind the formation of market cycles.

Details

International Journal of Emerging Markets, vol. 10 no. 4
Type: Research Article
ISSN: 1746-8809

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Article
Publication date: 1 May 1962

A.H. Brazendale

Opinions on secondary technical schools are varied and often strongly held but, as with views on comprehensive schools, it helps to have been inside one. Mr Brazendale, a…

306

Abstract

Opinions on secondary technical schools are varied and often strongly held but, as with views on comprehensive schools, it helps to have been inside one. Mr Brazendale, a Cambridge graduate in his mid‐twenties, has taught in secondary modern and grammar schools as well as the technical school he discusses here

Details

Education + Training, vol. 4 no. 5
Type: Research Article
ISSN: 0040-0912

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Article
Publication date: 1 February 1995

James H. Sweetland and Peter G. Christensen

Reports on a comparison of the 1992 Lambda Book Award titles and a sample of titles reviewed in the Lambda Book Report with a control group of titles listed in Publishers Weekly

178

Abstract

Reports on a comparison of the 1992 Lambda Book Award titles and a sample of titles reviewed in the Lambda Book Report with a control group of titles listed in Publishers Weekly, “Forecasts”. Finds that while the Lambda Award titles received about the same number of reviews as the control group titles, the LBR sample received significantly fewer reviews. However, both samples of gay/lesbian/ bisexual books are held in significantly fewer OCLC libraries than are the control titles. Examines the content of reviews of sample books and finds that they show no apparent bias on the part of the reviewers.

Details

Collection Building, vol. 14 no. 2
Type: Research Article
ISSN: 0160-4953

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Article
Publication date: 1 June 1973

These are the proceedings of a symposium held at Stamford University and include a complete section on aircraft crashworthiness with a survey of rotary wing aircraft…

43

Abstract

These are the proceedings of a symposium held at Stamford University and include a complete section on aircraft crashworthiness with a survey of rotary wing aircraft crashworthiness by G. T. Singley. In this he reviews and analyses the findings of the 11 year crash survival research and development programme conducted by the Eustis Directorate and covers accident investigation, crash testing of full‐scale, fully instrumented aircraft, crash injury and crashworthiness evaluation of aircraft, and aircraft mockups; and selected component and subassembly testing. An assessment of energy absorbing devices for prospective use in aircraft impact situations is made by A. A. Ezra and R. J. Fay. The subject is defined as the specific energy absorption capacity per unit weight of device or system, the efficiency of the stroke, the stroke to length ratio, the reliability, the repeatability, the ability to sustain rebound loads and the cost. Human tolerance limitations related to aircraft crashworthiness by A. I. King outlines the problems encountered in the scaling of animal data to the human level and in the correlation of single‐directional tolerance data to actual multi‐directional impacts. Jack Collins and James W. Turnbow consider the response of a scat passenger system to impulsive loading in which they present maximum system forces, displacements, velocities and accelerations as functions of velocity change, aircraft deceleration, crash pulse shape, passenger weight and scat belt slack. Also of especial interest is “Flutter prevention in design of SST” by M. J. Turner and J. B. Bartley which they discuss in relation to configuration constraints resulting from mission performance requirements. This is included in a section on structural systems and other sections in the book concern structural elements, materials and solids.

Details

Aircraft Engineering and Aerospace Technology, vol. 45 no. 6
Type: Research Article
ISSN: 0002-2667

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Article
Publication date: 1 January 1980

The University of Essex are offering a new series of short “Laser Workshop” courses during the Spring of 1980, which are designed to make a number of important laser applications…

75

Abstract

The University of Essex are offering a new series of short “Laser Workshop” courses during the Spring of 1980, which are designed to make a number of important laser applications more widely known in industry and experts from many organisations have agreed to participate.

Details

Aircraft Engineering and Aerospace Technology, vol. 52 no. 1
Type: Research Article
ISSN: 0002-2667

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Article
Publication date: 1 April 1980

Not many weeks back, according to newspaper reports, three members of the library staff of the School of Slavonic and East European Studies in London were dismissed. All had…

154

Abstract

Not many weeks back, according to newspaper reports, three members of the library staff of the School of Slavonic and East European Studies in London were dismissed. All had refused to carry out issue desk duty. All, according to the newspaper account, were members of ASTMS. None, according to the Library Association yearbook, was a member of the appropriate professional organisation for librarians in Great Britain.

Details

Library Review, vol. 29 no. 4
Type: Research Article
ISSN: 0024-2535

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Article
Publication date: 1 September 1968

IN the two years since the last Farnborough Air Show was held by the Society of British Aerospace Companies the aircraft industry has achieved an almost complete metamorphosis…

68

Abstract

IN the two years since the last Farnborough Air Show was held by the Society of British Aerospace Companies the aircraft industry has achieved an almost complete metamorphosis from the body blows in the form of major programme cancellations that almost felled it in 1965 to the very healthy position that it holds today.

Details

Aircraft Engineering and Aerospace Technology, vol. 40 no. 9
Type: Research Article
ISSN: 0002-2667

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Article
Publication date: 1 February 1974

Frances Neel Cheney

Communications regarding this column should be addressed to Mrs. Cheney, Peabody Library School, Nashville, Term. 37203. Mrs. Cheney does not sell the books listed here. They are…

411

Abstract

Communications regarding this column should be addressed to Mrs. Cheney, Peabody Library School, Nashville, Term. 37203. Mrs. Cheney does not sell the books listed here. They are available through normal trade sources. Mrs. Cheney, being a member of the editorial board of Pierian Press, will not review Pierian Press reference books in this column. Descriptions of Pierian Press reference books will be included elsewhere in this publication.

Details

Reference Services Review, vol. 2 no. 2
Type: Research Article
ISSN: 0090-7324

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Abstract

Details

Stories and Lessons from the World's Leading Opera, Orchestra Librarians, and Music Archivists, Volume 2: Europe and Asia
Type: Book
ISBN: 978-1-80262-659-9

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Article
Publication date: 5 April 2013

Tony Proctor

The purpose of this paper is to examine the process of innovation management in the eighteenth century in the context of the search for precision time keeping in the watch making…

725

Abstract

Purpose

The purpose of this paper is to examine the process of innovation management in the eighteenth century in the context of the search for precision time keeping in the watch making industry. In particular it looks at how knowledge was managed and transferred among interested stakeholders in the process.

Design/methodology/approach

The paper reviews the published horological literature on the subject and considers it within modern theories relating to the management of innovation.

Findings

This paper illustrates that personal contact and collaboration is important to the development of innovation. The paper highlights the importance of networking in the process of innovation and collaboration as a means to share and develop ideas. Collaboration with organisations working in adjacent technologies was found to be present and competition promoted by the incentive of financial reward was found to be a motivator factor for moving innovation forward.

Originality/value

This paper will be helpful to academics who study innovation history as well as current innovation management practices.

Details

Journal of Management History, vol. 19 no. 2
Type: Research Article
ISSN: 1751-1348

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