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The Bass model was created to analyse the product life cycle (PLC) in order to help sales and marketing departments in their business decision making. The purpose of this paper is to analyse the diferences between the clients assisted and sales variables, to discover which of the two variables is the more useful for the estimation of the PLC phases through the Bass model, thus aiding the managers of company sales and marketing departments.

In this research, the authors analysed the 223,577 clients assisted by a nationwide network of car dealerships, who acquired 36,819 vehicles, during a 24-month period. In the analysis, the Bass model was applied to define the PLC phases; and nonlinear regression models were used to carry out the estimations.

The results show that more consistent estimates of the PLC phases are obtained from the clients assisted variable. This work has theoretical and practical implications that can help business management.

The most remarkable thing about this research is that we have shown that the functionality of the clients assisted variable is greater than the sales variable for the Bass model and, therefore, for PLC estimation.

The results of this research are very useful, since they allow marketing decision makers to obtain more consistent estimations of the PLC phases using the Bass model and the clients assisted variable. This is based on the fact that the use of this variable helps to detect if there is any deficiency in the design of the marketing strategy when the client does not make the purchase.

The data on clients assisted are as easily available to companies as sales data. However, the use of this variable improves PLC analysis and this allows an improvement in company forecasting. Thus, making the clients assisted variable a tool to strategically plan investments in innovation and marketing would reduce uncertainty in business management.

The purpose of this paper is to analyse the diferences between the clients assisted and sales variables, to discover which of the two variables is the more useful for the estimation of the PLC phases through the Bass model, thus aiding the managers of company sales and marketing departments.

Index by subjects, compiled by K.G.B. Bakewell covering the following journals: Facilities Volumes 8‐17; Journal of Property Investment & Finance Volumes 8‐17; Property Management Volumes 8‐17; Structural Survey Volumes 8‐17.

The purpose of this paper is to explore educator collaborative inquiry in the shared workspace in professional learning communities (PLCs). Specifically, this investigation was part of an ongoing investigation of well-established PLC collaborative interactions and self-directed learning of educators as part of the shared workspace as a component of school improvement.

A qualitative design was used for this investigation. Participants were purposefully selected to provide qualitative data on existent, well-established PLCs and their practice as educators in the shared workspace. Qualitative data were collected about participant perception. Data were collected from each participant by conducting semi-structured interviews, observations, and the collection of document and artifacts.

Findings from this ongoing investigation point to positive collaborative physical interactions and intellectual discourse that lead to educator learning through the collaborative inquiry process.

Theories on PLCs and educator job-embedded professional learning are unique in this paper. The concepts of PLCs and the collaborative inquiry process have been well developed but not in the context of the shared workspace. Recent literature on effective collaborative inquiry educators undergo in PLCs as a continuing professional development model provides a foundation for the work done in this ongoing case study. Sustained collaboration and continued professional development of teaching innovations as a product of the collaborative inquiry process in the shared workspace are underdeveloped as yet but further developed in this paper.

Compiled by K.G.B. Bakewell covering the following journals published by MCB University Press: Facilities Volumes 8‐18; Journal of Property Investment & Finance Volumes 8‐18; Property Management Volumes 8‐18; Structural Survey Volumes 8‐18.

Compiled by K.G.B. Bakewell covering the following journals published by MCB University Press: Facilities Volumes 8‐17; Journal of Property Investment & Finance Volumes 8‐17; Property Management Volumes 8‐17; Structural Survey Volumes 8‐17.

The purpose of this paper is to explore shared workspace and professional learning community (PLC) interactions in schools. The collaborative culture and PLCs were parts of the school culture. The collaborative culture of each school was designed to ensure teachers share intellectual and physical contributions in learning to investigate the impact of teaching and learning on students. The workspace overlap for teachers was part of the culture of each school and a function of the PLC interactions. PLCs provided opportunities for collaboration and therefore opportunities to share intellectual and physical workspace.

A grounded theory research approach was taken to this investigation, primarily because of the common experiences of educators in schools (Creswell, 2013). Collaborative process between educators in schools was qualitatively investigated as a function of PLC interactions. In all, three communities, five schools, and 70 educators were purposefully selected to participate. Data were collected, including semi-structured interviews, observations, artifacts, and researcher field notes.

The workspace interactions include shared leadership, decision making, teaching and learning practice, and accountability measures. Attributes and characteristics of effective collaboration and PLCs greatly affect the outcomes of PLCs. An emergent framework is provided that includes attributes of effective collaboration and the characteristics of effective PLCs that merge into intellectual and physical shared workspace.

This paper focuses on the connections between PLCs, school culture, and professional educator collaboration. This paper proposes to provide a unique model called the shared workspace. The model combines the intellectual and physical aspects of group members to ensure the effectiveness of collaborative systems that promote quality practice in schools through functional PLCs as part of a positive school culture. This paper further offers extensions to the shared leadership concept (Carpenter, 2015) in how schools, administrators, and teachers should work together, thus more collaboratively through a continuous improvement process of the school as a workplace and a learning organization.

Index by subjects, compiled by K.G.B. Bakewell covering the following journals: Facilities Volumes 8‐18; Journal of Property Investment & Finance Volumes 8‐18; Property Management Volumes 8‐18; Structural Survey Volumes 8‐18.

This paper aims to respond to calls in academia for an update of the product lifecycle (PLC). Through a systematic literature review, the authors provide an updated agenda, which aims to advance the PLC concept in research, teaching and practice.

The authors started by surveying 101 marketing academics globally to ascertain whether a PLC update was viewed necessary and beneficial in the marketing community and thereafter conducted citation analysis of marketing research papers and textbooks to ascertain PLC usage. The subsequent literature review methodology was split into two sections. First, 97 empirical articles were reviewed based on an evaluative framework. Second, research pertaining to the PLC determinants were assessed and discussed.

From the results of this review and primary data from marketing academics, the authors find that the method of predicting the PLC based on past sales has been largely unsuccessful and perceived as somewhat outdated. However, a new stream of PLC literature is emerging, which takes a consumer-centric perspective to the PLC and has seen more success at modeling lifecycles in various industries.

First, the study outlines the most contemporary and successful methodological approaches to modeling the PLC. Namely, the use of artificial intelligence, big data, demand modeling and consumer psychological mechanisms. Second, it provides several future research avenues using modern market trends such as sustainability, globalization, digitization and Covid-19 to push the PLC into the 21st century.

The PLC has shown to be resolutely popular in management application and education. However, without a continued effort in academic PLC research to update the knowledge around the concept, its use as a productive management tool will likely become outdated. This study provides a necessary and comprehensive literature update resulting in actionable future research and teaching agendas intended to advance the PLC concept into the modern market context.

Compiled by K.G.B. Bakewell covering the following journals published by MCB University Press: Facilities Volumes 8‐18; Journal of Property Investment & Finance Volumes 8‐18; Property Management Volumes 8‐18; Structural Survey Volumes 8‐18.

This paper seeks to report the findings of a survey aimed at understanding the marketing programmes (MP) for industrial products in different phases of the product life cycle (PLC).

The study is an exploratory one, conducted in a sample of 63 Indian organisations manufacturing general‐purpose machinery. Data pertaining to a total of 191 product lines in four phases of the PLC (42 in introduction, 59 in growth, 53 in maturity and 37 in decline phase) were collected using a specially developed questionnaire.

The results of the descriptive analysis revealed that the marketing programme variables emphasised in different PLC were different. In the Introduction phase decisions about product attributes, physical performance of the product, direct mail advertising, quality improvements and differentiation by design were emphasized. In Growth phase: feature additions, improvements in product styling, quality and service and market segmentation. In maturity and decline phases re‐tailoring products, sales force efforts were some of the marketing variables emphasised. The results support the views in literature about MP being different in different phases of the PLC. Based on a discriminant analysis, marketing variables that discriminate the different phases of the PLC were also obtained.

The study is done in the machine‐building industry in one country (India) – this limits the generalizability of the findings.

The results can be useful to marketing managers to anticipate the type of strategic MP in future and this in turn can help in planning activities of other management functions like manufacturing and R&D.

This study adds to the body of literature, which proposes to plan marketing and business strategies differently at the different PLC phases.