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The purpose of this paper is to present a full fourth‐order model of the gravity gradient torque of spacecraft around asteroids by taking into consideration of the inertia integrals of the spacecraft up to the fourth order, which is an improvement of the previous fourth‐order model of the gravity gradient torque.

The fourth‐order gravitational potential of the spacecraft is derived based on Taylor expansion. Then the expression of the gravity gradient torque in terms of gravitational potential derivatives is derived. By using the formulation of the gravitational potential, explicit formulations of the full fourth‐order gravity gradient torque are obtained. Then a numerical simulation is carried out to verify the model.

It is found that the model is more sound and precise than the previous fourth‐order model due to the consideration of higher‐order inertia integrals of the spacecraft. Numerical simulation results show that the motion of the previous fourth‐order model is quite different from the exact motion, while the full fourth‐order model fits the exact motion very well. The full fourth‐order model is precise enough for high‐precision attitude dynamics and control around asteroids.

This high‐precision model is of importance for the future asteroids missions for scientific explorations and near‐Earth objects (NEOs) mitigation.

In comparison with previous models, a gravity gradient torque model around asteroids that is more sound and precise is established. This model is valuable for high‐precision attitude dynamics and control around asteroids.

Taking ownership is considered vital for sustaining change in organizations, particularly when second-order changes are the goal. Yet, few studies explored psychological ownership of change agents in educational organizations. Moreover, no knowledge exists on how agents' individual psychological ownership augments psychological ownership in schools and on how collective psychological ownership of change relates to school culture. The present study aims to address these two lacunae.

A case study method was adopted to investigate the psychological ownership of teams of change agents in schools. Six Israeli secondary state religious schools adopting a new liberal curricular program were studied. Thirty one interviews were conducted with principals, program coordinators, mid-level teacher leaders and teachers who were active change agents in the promotion of the program. The interviews were complemented by quantitative data on students' perceptions of school discipline and tolerance of diversity based on the national school culture survey.

The analyses revealed the prevalence of three types of psychological ownership in the sample of schools. The analyses also showed how key components of psychological ownership, i.e. responsibility and territoriality in relation to change manifest in the schools that were explored. Institution-level analysis shed light on the different effects psychological ownership of the change team had on sharing within the faculty. In addition, analyses showed how the scope of agreement between two key change agents, the program initiator and the principal, on psychological ownership affected various psychological ownership aspects of the team. Last, the analysis shows that two types of collective psychological ownership emerged in the course of a liberal school change, and that types were differently related to school outcomes.

The study offers an innovative typology of collective psychological ownership during second-order change in schools, mapping two ideal types: cooperative and fragmented collective psychological ownership. The new types provide a better understanding of the dynamic of collective psychological ownership and its outcomes in organizations in general and schools in particular.

Recent demands for educational accountability and restructuring of schools in the United States have been directed at holding principals accountable for school outcomes. Unfortunately, although the number of states that mandate formal evaluation of principals has increased dramatically over the past several years, the quality of the assessments has not substantially improved. The study of principal assessment, therefore, has been slow to develop, has not experienced a high degree of systematization and has not been guided by firmly established theoretical considerations. Examines the generalizability of a leadership model using data from a recently completed study, and considers the use of this model in the development of a performance‐based evaluation approach to principal assessment.

This article aims to investigate the financial constraints and nonlinearity of farm size growth.

Farm size growth is measured with land, labor and output using data from the Farm Accountancy Data Network (FADN) for Hungary and Slovenia. A dynamic panel model is applied to assess financial constraints and nonlinearity of farm size growth.

Results show that, except for land in Slovenia and output in Hungary, liquidity constraints are less important for farm size growth than endogenous factors based on farm size growth expectations and steady farm size restructuring. Smaller farms are growing faster than larger ones. The hypothesis that a higher level of subsidies would increase farm size is not supported for Hungary. When farms reach a certain size, the land area of the largest farms increases. Farm debts in Hungary are linked with land growth and in Slovenia with output growth.

Further research on the impact of liquidity constraints and subsidies can be conducted at a disaggregate farm-type level to examine whether there is variability in the underlying interlinkages at the farm-type specialization level.

The implication that farm size growth is dependent on initial size and that smaller farms are growing faster than bigger ones indicates that it is not necessary to favor the fastest growing smaller farms thus supports the application of a non-discriminatory farm size policy for observing farm size structural changes.

The dynamic panel econometric model that incorporates cash flow as a measure of financial constraints provides insight into farm size growth in cross-country comparison in relation to potential farm liquidity constraints, farm debt and the nonlinearity of farm size, which information is of relevance to policy makers and practitioners.

The aim of this research is to investigate the adoption and implementation of SCM practices by small retail firms. Past research has established the benefits of SCM practices on performance of large enterprises, but the impact of these practices on small retailers merits attention due to the importance of this sector in the economy and organizational difference due to scale.

A survey instrument based on existing scales is developed and distributed to small retailers in Upstate New York. A total of 79 valid responses were received. A theoretical model is developed relating implementation of supply chain management practices to performance at both retail and supplier levels. The theoretical model was tested using partial least squares (PLS) methods.

This research suggests that supply chain management practices are positively related to performance at both the retail and suppler levels. Moderate implementation levels of supply chain management practices are reported among the small retailers studied.

This research employed perceptual performance measures. Future studies can expand on this research by examining objective data on performance metrics at both the retail and supplier level to better quantify costs and benefits of supply chain management in this context.

This research is the first paper to attempt to empirically test supply chain management practices among small retailers, thus generalizing our understanding of the supply chain management practices in a context not previously studied. Implications for suppliers and retailers are discussed.

This study aims to develop and empirically validate the concept of experience capability, which represents an organisation's ability to be adept at managing the customer experience. Organisations that build an experience capability develop an expertise in deploying a set of resources and routines to understand, evaluate and improve how they interact with customers across all the points of contact.

A rigorous process was employed to identify, operationally define, evaluate and validate six dimensions reflecting experience capability. The dimensions were developed and validated using relevant literature, expert interviews, item-sorting techniques, a pilot survey and two surveys, providing a degree of certainty that the intellectual insights are generalisable.

The experience capability concept is identified as comprising six dimensions that are informed by 27 measurement items. The six dimensions are employee training, employee empowerment, employee evaluation, experience performance management, cross-functional work and channel integration. The findings provide evidence suggesting that the multi-item measurement scale exhibits appropriate psychometric properties.

The empirically validated 27-item measurement scale provides practitioners with an approach to evaluate and improve their organisation's experience capability. It permits both longitudinal comparisons of individual organisations and competitive benchmarking both within and across industry sectors. The approach alerts managers to the critical operational areas that should be measured and provides a structured method to pursue competitive advantage through customer experience capability.

Developing valid and reliable measurement scales is an essential first step in effective theory-building. The paper proposes a theoretical foundation for the experience capability construct and validates a corresponding measurement scale. The scale was developed carefully to achieve the specificity required to undertake meaningful practitioner-centric assessment while maintaining relevance across sectorial contexts. The results complement existing customer-centric experience research by providing distinct intellectual insights from a practitioner perspective. The developed scale permits future intellectual investigation through capability comparisons both within and between companies in different industries/sectors.

Foreign markets possess different characteristics to domestic ones; this means that dynamic marketing capabilities (DMCs) should be adjusted. This paper aims to understand how these DMCs enable firms to achieve greater legitimacy in international markets.

This research uses a qualitative approach based on in-depth interviews in collaboration with an association of exporting firms.

Findings suggest five areas of DMCs to improve organizational legitimacy overseas: flexibility, relationship management, local market sensitivity, anticipation and exemplariness. Those capabilities should be combined and will play a different role depending on the implementation phase of the external company. Resource allocation and capability development should follow an integrative approach emphasizing proximity, adaptability, alliances, engagement and credibility to reach differentiation in foreign markets.

The originality is mainly focused on the cohabitation and strong synergies between DMCs and legitimacy. This aspect is particularly relevant because legitimized companies have higher levels of survival, which is fundamental in the international venture.