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Article
Publication date: 1 January 1997

Michel Dietsch

Major structural changes have affected the French banking industry during the second half of the 1980s, what suggests that the French banks were operating with a significant level…

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Abstract

Major structural changes have affected the French banking industry during the second half of the 1980s, what suggests that the French banks were operating with a significant level of inefficiencies before this period. The purpose of this study is to present estimates of X‐Efficiencies and Scale‐Efficiencies in French banks for the 1988–1992 period which followed this wave of changes. The data are annual accounting data for corporate, mutual and savings banks. The sample contains 375 depository banks. By using the “distribution free” method of efficiency estimation, our estimations show that average X‐efficiencies of the French banks are in the range of 70% to 90%. Our results confirm also the existence of scale economies in French banking industry. Scale efficiency estimates show clearly that French banks could reduce average costs by about 15% on average by increasing size in order to reach the efficient size. Note that this result is also in conformity with the hypothesis that some excess capacity could exist in French banking industry.

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Managerial Finance, vol. 23 no. 1
Type: Research Article
ISSN: 0307-4358

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Publication date: 13 December 2010

Magdalena Gross

This chapter examines the processes of rewriting nationhood in educational narratives regarding the Second World War (WWII) in Poland. Using mixed methods, this case study…

Abstract

This chapter examines the processes of rewriting nationhood in educational narratives regarding the Second World War (WWII) in Poland. Using mixed methods, this case study analyzes narrative change in state-approved history textbooks published between 1977 and 2008, thus covering the period of political transition from a communist to a democratic Poland. Although trends in learning theory and international norms suggest that attention to diversity should have increased in textbooks, in Poland these trends have been subsumed by more long-lasting Polish specific cultural tropes. WWII narratives, in particular, emphasize an ethnically homogeneous nation. Throughout the 31-year sample, educating youth about WWII in Poland continues to be focused on reclaiming “Polishness” rather than on espousing global understandings and citizenship.

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Post-Socialism is not Dead: (Re)Reading the Global in Comparative Education
Type: Book
ISBN: 978-0-85724-418-5

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Article
Publication date: 9 May 2023

Dheeraj Choppara, Alysia Garmulewicz and Joshua M. Pearce

This study aims to apply an open-source approach to protect the 3D printing industry from innovation stagnation due to broad patenting of obvious materials.

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Abstract

Purpose

This study aims to apply an open-source approach to protect the 3D printing industry from innovation stagnation due to broad patenting of obvious materials.

Design/methodology/approach

To do this, first an open-source implementation of the first five conditions of an open-source algorithm developed to identify all obvious 3-D printing materials was implemented in Python, and the compound combinations of two and three constituents were tested on ten natural and synthetic compounds. The time complexity for combinations composed of two constituents and three constituents is determined to be O(n2) and O(n3), respectively.

Findings

Generating all combinations of materials available on the Chemical Abstracts Services (CAS) registry on the fastest processor on the market will require at least 73.9 h for the latter, but as the number of constituents increases the time needed becomes prohibitive (e.g. 3 constituents is 1.65 million years). To demonstrate how machine learning (ML) could help prioritize both theoretical as well as experimental efforts a three-part biomaterial consisting of water, agar and glycerin was used as a case study. A decision tree model is trained with the experimental data and is used to fill in missing physical properties, including Young's modulus and yield strength, with 84.9 and 85.1% accuracy, respectively.

Originality/value

The results are promising for an open-source system that can theoretically generate all possible combinations of materials for 3-D printing that can then be used to identify suitable printing material for specific business cases based on desired material properties.

Details

Journal of Manufacturing Technology Management, vol. 34 no. 6
Type: Research Article
ISSN: 1741-038X

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