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This paper aims to present a linear quadratic regulator (LQR) employed to improve performance of an electrical power steering (EPS) system.

Generally, EPS is a full electric system having an electrical motor which provides the assist torque on the steering mechanism in order to reduce the workload and to enhance the steering feel of the driver during the steering process. Since the torque sensors are considerably expensive, the authors present a control strategy that eliminates the driver torque sensor by introducing a torque estimator. Three main technical areas are described in this paper. First, the principle and structure of EPS are presented including the dynamic model. Second, LQR and Kalman filter techniques are employed to derive an optimal controller for the EPS system. Finally, the simulations and hardware results are depicted.

The combined tools of Matlab/Simulink and dSPACE provide the environment for modelling the controller in software and applying it to the actual hardware via a digital signal processing board based on the DS1401 MicroAutoBox. The controller is evaluated via simulation results, dSPACE hardware results, and verified on vehicle testing data.

This paper presents a controller design for an EPS system based on the LQR techniques. Within the controller concept shown, elimination of the driver torque sensor offers advantages in terms of both cost and mechanical performance. Simulations and measured data prove the good functionality of the controller proposed.

The purpose of this research is to answer the question: how can a new service development (NSD) program in the financial services industry be managed? More specifically, this research has two objectives: to explore the stages in the NSD process; and to explore how customer input may be obtained in the various stages of the development process. After a review of the new product development literature, the case study methodology involving in‐depth interviews with managers and their customers is described. Analysis of the data showed that there were ten stages in the NSD process, and whether those stages were managed linearly or sequentially was a function of the size of the firm. In addition, how NSD managers obtained customer input in each stage, was uncovered. Implications for NSD managers include which stages to concentrate on, and how to capture customer input.

Stadium naming rights programs have proliferated over the past decade, yet we have no direct evidence that these types of sponsorship programs help companies develop their long-term brand equity or even provide a short-term boost to corporate value. This paper examines the impact that naming rights programs have had on the stock values of the corporate sponsors. Using event study analysis, it is found that there are mixed responses to these types of programs. A discussion is provided which helps to explain the mixed results and provides communications mangers with some suggestions on creating more effective naming rights programs.

The purpose of this paper is to explore the effects of competitive pressure on financial statements’ comparability (comparability) by analyzing various dimensions of competition.

The authors study the effect of competition on comparability using the comparability measure of De Franco et al. (2011) and various proxies for competition, competition from existing/potential rivals and non-price competition (NPC).

This study documents that competition is positively associated with comparability, and this effect is more (less) pronounced for industry followers (leaders). The authors also document that competition from existing rivals enhances comparability, but competition from potential entrants does not. Moreover, NPC is also a significant determinant of comparability. Furthermore, the competition from existing/potential rivals plays no significant role in the production of comparable financial statements in state-owned enterprises. The results are robust to alternative measures of comparability and methodological approaches.

This study is the first empirical study that documents a new channel (comparability) through which competition affects financial statements. The findings support the argument that competitive pressure acts as a governance mechanism, disciplines management and increases comparability leading to lower information asymmetry (governance view). However, the findings contest the argument that higher competition motivates managers to withhold information (proprietary cost hypothesis). By examining the effect of state ownership, this study might also help to characterize the effects of changes in corporate objectives on managerial decisions related to financial reporting.

Clients or users of products, processes or services are currently being identified as potential sources of innovation in construction. There are concerns about the degree of innovation within the construction industry, despite having potential to be innovative. The role that can be played by the construction client to promote innovation in the industry is well documented. However, lack of knowledge on the desirable characteristics of the construction client was identified as one of the barriers for the construction client to be an effective innovation promoter. Accordingly, the purpose of this paper is to evaluate the characteristics of the construction client that promote innovation.

Multiple holistic case studies were used as the research strategy and semi‐structured interviews were used as the principal data collection technique. Code‐based content analysis and cognitive mapping were used to analyse the interviews. Data analysis was supported by two computer‐aided softwares, NVivo and Decision Explorer.

Clients can increase the efficiency of work carried out towards the construction process, stimulate team dynamics, and team action through the championing characteristics, which in turn can strengthen the innovation process that lead to the innovative product. Being a team player, promoting respect for people, and knowledge and information dissemination are identified as constituents of the championing characteristics of clients that promote innovation in construction projects. The personal skills of clients such as competence, value judgement, flexibility, and self‐motivation will energise the success of the championing characteristics.

The client characteristics identified from the study widen the knowledge base of the client to successfully engage in construction innovation.

Considering the resource constraint, this paper aims to study how to make value-added service (VAS) investment strategy considering the negative intra-group network externality on the seller side from the perspective of a two-sided platform.

The authors use the dynamic game theory, optimization, sensitive analysis and numerical study in this research. The authors model their research question from the perspective of the dynamic game theory, and through optimizing the platform’s profit function, the equilibrium results in terms of VAS investing and pricing strategies are derived. To explore the characteristics of the optimal strategies, sensitive analysis is used, and numerical studies are conducted to further illustrate the analytical results.

It is found that the intra-group network externality is not necessarily the determinant for VAS investment strategy, and its overall negative impact can be overtaken by the investment in certain conditions. The optimal VAS investment level decreases in the negative intra-group network externality. Though the VAS investment is on the seller side, it has either positive or negative impact on the pricing for buyers. Moreover, for a stronger intra-group network externality among sellers, the two-sided prices could either increase or decrease.

The authors implicate how the intra-group network externality reduces the investment benefit and impacts the other side users. The limitation of considering the intra-group network externalities on only one side needs further extension.

The authors provide insights for platform operators in how to use recourse to improve users’ utility and how to price the two sides when competition exists on the seller side.

This study specifies the role of negative intra-group network externality in determining the investment and pricing strategy of a two-sided platform in addition to the positive inter-group network externality.

The title of this chapter was inspired by Martin, a prisoner the author met while conducting fieldwork. Martin remarked that, despite the common rhetoric around prisoners ‘maintaining’ their family ties, the reality was that during imprisonment it became more about trying to cling on to them. Imprisonment is perhaps one of the most brutal disruptions a family can undergo, leaving them little choice but to adapt to this enforced transition. Immediately, the spaces where family life can happen narrow severely and become dictated by the prison environment and the plethora of rules that regulate it. The immediate physical separation, onerous restrictions on physical contact and the heavily surveilled nature of family contact during imprisonment constricts space for emotional expression, often rendering romantic relationships clandestine and fatherhood attenuated. Further, the temporal space for family is reduced as limited opportunities for visits lead prisoners to eschew contact with wider family members and prioritise their ‘nuclear’ family. Drawing on empirical research conducted at two male prisons in England and Wales, this chapter then, will detail the complexities of how families navigate this transition and the limitations on what family can mean in the prison environment. The chapter will conclude with the implications of these restrictions for the ultimate transition when prisoners return ‘home’.