Search results

1 – 10 of over 26000
Book part
Publication date: 31 January 2015

Soora Rasouli and Harry Timmermans

This chapter reviews models of decision-making and choice under conditions of certainty. It allows readers to position the contribution of the other chapters in this book in the…

Abstract

Purpose

This chapter reviews models of decision-making and choice under conditions of certainty. It allows readers to position the contribution of the other chapters in this book in the historical development of the topic area.

Theory

Bounded rationality is defined in terms of a strategy to simplify the decision-making process. Based on this definition, different models are reviewed. These models have assumed that individuals simplify the decision-making process by considering a subset of attributes, and/or a subset of choice alternatives and/or by disregarding small differences between attribute differences.

Findings

A body of empirical evidence has accumulated showing that under some circumstances the principle of bounded rationality better explains observed choices than the principle of utility maximization. Differences in predictive performance with utility-maximizing models are however small.

Originality and value

The chapter provides a detailed account of the different models, based on the principle of bounded rationality, that have been suggested over the years in travel behaviour analysis. The potential relevance of these models is articulated, model specifications are discussed and a selection of empirical evidence is presented. Aspects of an agenda of future research are identified.

Details

Bounded Rational Choice Behaviour: Applications in Transport
Type: Book
ISBN: 978-1-78441-071-1

Keywords

Article
Publication date: 30 May 2019

Huiling Chen, Liguo Shuai, Weihang Zhu and Mei Miao

This paper aims to investigate the perception threshold (PT) of electrotactile stimulation under non-steady contact condition (NSCC) which is rarely considered in previous reports…

Abstract

Purpose

This paper aims to investigate the perception threshold (PT) of electrotactile stimulation under non-steady contact condition (NSCC) which is rarely considered in previous reports mainly because of the difficulty with experimental control. Three factors of NSCC are involved, including the current alternating frequency, the tapping interval of stimulation and the stimulating area of skin. The study is aimed at providing the basic PT data for design and application of wearable and portable electrotactile device.

Design/methodology/approach

The up-down method was selected to assess PT, and 72 experimental scenarios were constructed. During the study, we developed an experimental platform with the function of data record and programmable current stimulation. With psychophysical experiment, more than 10,000 data were collected. Furthermore, statics analysis and ANOVA test were opted for exploring the main factor influencing PT.

Findings

NSCC has different PTs on each body location, and PT has a positive correlation with frequency. In general, PT in NSCC is significantly lower than that in SCC. In some cases, it can be lower by more than 60 per cent. In addition, women have a lower PT than men across all age groups, and the younger is generally more sensitive than the older in electro-sensation.

Research limitations/implications

Limited factors of NSCC were considered in this study. Contact time and break interval should be investigated in the future work.

Practical implications

The paper includes implications for the development of smart electrotactile device.

Originality/value

This paper fulfills a challenge in assessing the PT under NSCC.

Details

Industrial Robot: the international journal of robotics research and application, vol. 46 no. 3
Type: Research Article
ISSN: 0143-991X

Keywords

Article
Publication date: 1 February 1971

B.C. VICKERY

Retrieval languages may have varied structural characteristics, and these are summarized. The languages serve varied purposes in information systems, and a number of these are…

Abstract

Retrieval languages may have varied structural characteristics, and these are summarized. The languages serve varied purposes in information systems, and a number of these are identified. The relations between structure and function are discussed and suggestions made as to the most suitable structures needed for various purposes.

Details

Journal of Documentation, vol. 27 no. 2
Type: Research Article
ISSN: 0022-0418

Article
Publication date: 1 March 2006

Graeme Wines

This experimental study investigates the connotative (measured) meaning of the concept “auditor independence” within three audit engagement case contexts, including two…

Abstract

This experimental study investigates the connotative (measured) meaning of the concept “auditor independence” within three audit engagement case contexts, including two acknowledged in the literature to represent significant potential threats to independence. The study’s research design utilises the measurement of meaning (semantic differential) framework originally proposed by Osgood et al. (1957). Findings indicate that research participants considered the concept of independence within a two factor cognitive structure comprising “emphasis” and “variability” dimensions. Participants’ connotations of independence varied along both these dimensions in response to the alternative experimental case scenarios. In addition, participants’ perceptions of the auditor’s independence in the three cases were systematically associated with the identified connotative meaning dimensions.

Details

Pacific Accounting Review, vol. 18 no. 1
Type: Research Article
ISSN: 0114-0582

Keywords

Article
Publication date: 17 December 2021

Yasmine Guennoun, Nada Benajiba, Khalid Elkari, Amina Bouziani, Laila Elammari, Ayoub Al-Jawaldeh, Noureddine Elhaloui, Amina Barkat, Hasnae Benkirane and Hassan Aguenaou

Sugar consumption in Morocco is high, which is involved in triggering serious health conditions. Hence, assessing the recognition threshold of sweet taste among Moroccans is…

Abstract

Purpose

Sugar consumption in Morocco is high, which is involved in triggering serious health conditions. Hence, assessing the recognition threshold of sweet taste among Moroccans is strongly needed. This study aims to determine the threshold of sweet taste recognition and to evaluate differences by sex, age and body mass index among a sample of Moroccan population.

Design/methodology/approach

This single-blind trial was conducted among 199 healthy participants to determine the sweet taste. Age and anthropometric characteristics were registered. Nine sucrose solutions of the following concentrations (0; 0.111; 0.333; 1; 3; 9; 27; 81; 243 mmol/L) were prepared. Sweet taste perception thresholds were determined based on the validated 3-alternative forced choice test method.

Findings

The average age of the sample population was 21.5 ± 26.1. And more than half (51.7%) detected the taste at the concentration of 9 mmol/L, while 91.9% recognized it at a concentration of 27 mmol/L. In terms of sex, the recognition of taste was not different between females and males (p > 0.05). The mean values of the threshold among women were significantly lower (20 ± 20.8 mmol/L) compared to men (23.9 ± 33.2 mmol/L). The age group 49–59 years old had the lowest threshold with a mean of 13.4 ± 10.2 mmol/L, and the groups with BMI in the overweight category had mean of 16.9 ± 18.2 mmol/L. However, no statistical difference was observed among either age groups or BMI categories.

Originality/value

The sweet recognition threshold among the studied population is high. Therefore, it is strongly recommended to educate the population about the necessity of a progressive reduction of sugar in food items to combat non-communicable disorders.

Details

Nutrition & Food Science , vol. 52 no. 1
Type: Research Article
ISSN: 0034-6659

Keywords

Book part
Publication date: 25 September 2020

Deniz Erer and Elif Erer

Introduction: Uncertainty plays an important role on economic stability and macroeconomic variables. Economic agents postpone decisions about investment and consumption in periods…

Abstract

Introduction: Uncertainty plays an important role on economic stability and macroeconomic variables. Economic agents postpone decisions about investment and consumption in periods in which uncertainty is high. This situation affects economic growth negatively. Recently, uncertainty has focused on policy uncertainty. At this point, economic policy uncertainty (EPU) comes to the forefront. EPU is defined as conception that economic agents do not forecast consequences of economic policies adopted by policy makers and future economic policies. In terms of developing countries, statements presented by policy makers in the United States especially may appear as a source of uncertainty in developing economies.

Aim: Therefore, the aim of this study is to analyze the effects of US EPU on macroeconomic variables for Turkey and Brazil, Russia, India, China and South Africa for periods in which global risk perception is low and high.

Method: The authors used monthly data from January 1998 to December 2018. For this purpose, the authors used Threshold VAR. VIX index takes in consideration as global risk perception. The authors used US EPU index proposed by Baker’s vd. (2016) in order to measure EPU in the United States. Besides, the authors used macroeconomic variables such as industrial production index, inflation and exchange rate.

Findings: As is seen from the results of the analysis, for Turkey’s economy the macroeconomic variables significantly and strongly respond to the changes in the EPU index during the periods in which global risk perception is low; nonetheless, the so-called responses weaken due to the adopted policy of “wait and watch” by investors during the periods in which global risk perception is high.

Details

Uncertainty and Challenges in Contemporary Economic Behaviour
Type: Book
ISBN: 978-1-80043-095-2

Keywords

Book part
Publication date: 7 June 2016

Jessica M. Blomfield, Ashlea C. Troth and Peter J. Jordan

Sustainability is an emotional issue. It is also an issue that is gaining prominence in organizational agendas. In this chapter, we outline a model to explain how employees…

Abstract

Purpose

Sustainability is an emotional issue. It is also an issue that is gaining prominence in organizational agendas. In this chapter, we outline a model to explain how employees perceive change agents working to implement sustainability initiatives in organizations. Using this model, we argue that organizational support for sustainability can influence how employees respond to sustainability messages. We further argue that the intensity of emotions that change agents display, and how appropriate those emotions are within the organizational context, will influence how employees perceive those individuals and the success of their efforts to influence green outcomes.

Research implications

We extend the Dual Threshold Model of emotions (DTM: Geddes & Callister, 2007) to assess the impact of displays of emotional intensity on achieving sustainability goals. Our model links emotional propriety to change agent success. By exploring variations of the DTM in terms of contextual factors and emotional intensity, our model elaborates on the dynamic nature of emotional thresholds.

Practical implications

Using our framework, change agents may be able to improve their influence by matching the emotional intensity of their messages to the relevant display rules for that organization. That is, change agents who are perceived to express emotion within the thresholds of propriety can enhance their success in implementing green outcomes.

Originality/value

This chapter examines sustainability initiatives at the interpersonal behavior level. We combine aspects of organizational behavior, emotion in organizations, and organizations and the natural environment to create a new model for understanding change agent success in corporate sustainability.

Details

Emotions and Organizational Governance
Type: Book
ISBN: 978-1-78560-998-5

Keywords

Article
Publication date: 1 February 1980

DAN E. INBAR

The classical dichotomy between success and failure is hardly applicable in the analysis of organisational behaviour, performance and outcomes in complex social roles, such as…

Abstract

The classical dichotomy between success and failure is hardly applicable in the analysis of organisational behaviour, performance and outcomes in complex social roles, such as those in education. A unique approach has to be developed. Hence, a threefold classification has been pursued here: unequivocal failure, “satisficing”, and unequivocal success. Although viewed as existing along a continuum, they are marked out by failure and success thresholds. Four basic role climates, transpiring from four basic failure‐success configurations, have been identified and analysed: “apathetic”, “frustrating”, “tense”, and “tranquil” role climates, from which preliminary hypotheses of organisational behaviour have been derived. Application of the analytical framework developed here was restricted to the school principal, a complex role, with many components which are characterised by different and often conflicting role climates. Tentative propositions relating to school principal role climates and organisational behaviour were postulated on the basis of this analytical framework.

Details

Journal of Educational Administration, vol. 18 no. 2
Type: Research Article
ISSN: 0957-8234

Article
Publication date: 13 June 2016

Stuart Crispin, Phil Hancock, Sally Amanda Male, Caroline Baillie, Cara MacNish, Jeremy Leggoe, Dev Ranmuthugala and Firoz Alam

The purpose of this paper is to explore: student perceptions of threshold concepts and capabilities in postgraduate business education, and the potential impacts of intensive…

17176

Abstract

Purpose

The purpose of this paper is to explore: student perceptions of threshold concepts and capabilities in postgraduate business education, and the potential impacts of intensive modes of teaching on student understanding of threshold concepts and development of threshold capabilities.

Design/methodology/approach

The student experience of learning was studied in two business units: strategic management, and accounting. The method involved two phases. In the first, students and unit coordinators identified and justified potential threshold concepts and capabilities. In the second, themes were rationalized.

Findings

Significantly more so in intensive mode, the opportunity to ask questions was reported by student participants to support their development of the nominated threshold capabilities. This and other factors reported by students to support their learning in intensive mode are consistent with supporting students to traverse the liminal space within the limited time available in intensive mode.

Research limitations/implications

Respondents from future cohorts will address the small participant numbers. Studies in only two units are reported. Studies in other disciplines are presented elsewhere.

Practical implications

The findings will be important to educators using intensive mode teaching in business, and researchers working within the framework.

Originality/value

This is the first study to explore the potential impacts of intensive modes of teaching on student understanding of threshold concepts and development of threshold capabilities.

Details

Education + Training, vol. 58 no. 5
Type: Research Article
ISSN: 0040-0912

Keywords

Book part
Publication date: 31 January 2015

Wei Zhu and Harry Timmermans

Increasing evidence suggests that choice behaviour in real world may be guided by principles of bounded rationality as opposed to typically assumed fully rational behaviour, based…

Abstract

Purpose

Increasing evidence suggests that choice behaviour in real world may be guided by principles of bounded rationality as opposed to typically assumed fully rational behaviour, based on the principle of utility-maximization. Under such circumstances, conventional rational choice models cannot capture the decision processes. The purpose of the chapter is to propose a modeling framework that can capture both decision outcome and decision process.

Methodology

The modeling framework incorporates a discrete cognitive representation structure and implies several decision heuristics, such as conjunctive, disjunctive and lexicographic rules. This allows modeling unobserved decision heterogeneity involved in a single decision, for example, in the form of a latent-class specification, taking into account mental effort, risk perception and expected outcome as explanatory factors.

Findings

Two models based on this framework are applied to decision problems underlying pedestrian shopping behaviour and compared with conventional multinomial logit models. The results show that the proposed models may not be superior to logit models in terms of model selection criteria due to the extra complexity in selecting heuristics, but suggest more interesting insights to the underlying decision mechanisms.

Research implications

Understanding decision processes additional to outcomes is a promising research direction. A more developed model should take into account more contextual and socio-demographic factors in the heuristic selection part. The assumptions of information processing must be subject to empirical tests to validate the model.

Originality

The proposed modeling framework bridges the long-existing contradicting approaches in the field of decision modeling, namely the rational approach and the bounded rational approach, by proving that non-compensatory decision heuristics can be inferred from compensatory model formulations with discretized information representations and decision criteria assumed. It also incorporates a heuristic choice part into the decision processes in the form of latent-class specifications and shows the viability of the new modeling framework.

Details

Bounded Rational Choice Behaviour: Applications in Transport
Type: Book
ISBN: 978-1-78441-071-1

Keywords

1 – 10 of over 26000