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The purpose of this study is to develop the dictionary with grammar and multiword structure has to be used in conjunction with sentiment analysis to investigate the relationship between financial news and stock market volatility.

An algorithm has been developed for calculating the sentiment orientation and score of data with added information, and the results of calculation have been integrated to construct an empirical model for calculating stock market volatility.

The experimental results reveal a statistically significant relationship between financial news and stock market volatility. Moreover, positive (negative) news is found to be positively (negatively) correlated with positive stock returns, and the score of added information of the news is positively correlated with stock returns. Model verification and stock market volatility predictions are verified over four time periods (monthly, quarterly, semiannually and annually). The results show that the prediction accuracy of the models approaches 66% and stock market volatility with a particular trend-predicting effect in specific periods by using moving window evaluation.

Only one news source is used and the research period is only two years; thus, future studies should incorporate several data sources and use a longer period to conduct a more in-depth analysis.

Understanding trends in stock market volatility can decrease risk and increase profit from investment. Therefore, individuals or businesses can feasibly engage in investment activities for profit by understanding volatility trends in capital markets.

The ability to exploit textual information could potentially increase the quality of the data. Few scholars have applied sentiment analysis in investigating interdisciplinary topics that cover information management technology, accounting and finance. Furthermore, few studies have provided support for structured and unstructured data. In this paper, the efficiency of providing the algorithm, the model and the trend in stock market volatility has been demonstrated.

The purpose of this paper is to review policy or guidance on the implementation of Section 5(4) written by NHS mental health trusts in England and health boards in Wales.

A Freedom of Information request was submitted to all trusts in England (n=57) and health boards in Wales (n=7) asking them to provide a copy of any policy or guidance on the implementation of Section 5(4). Documents were analysed using content analysis. Specific attention was given to any deviations from the national Mental Health Act Codes of Practice.

In total, 41 (67.2 per cent) organisations had a policy on the implementation of Section 5(4). There was a high level of consistency between local guidance and the Mental Health Act Codes of Practice. There were however; different interpretations of the guidance and errors that could lead to misuse of the section. Some policies contained useful guidance that could be adopted by future versions of the national Codes of Practice.

The research has demonstrated the value of examining the relationship between national and local guidance. Further research should be undertaken on the frequency and reasons for any reuse of the section.

Greater attention should be given to considering the necessity of local policy, given the existence of national Codes of Practice.

This is the only research examining the policy framework for the implementation of Section 5(4).

The purpose of this paper is to examine investments in selected Feed the Future countries in Africa.

The authors examine three investments in Feed the Future countries (e.g. Rwanda and Uganda) in the context of non-traded goods, exports and imports. These investments include research and development in Ugandan cassava production, a value chain intervention in the coffee market channel in Rwanda and a program to increase the use of fertilizer for maize production in Rwanda. The authors also stress the importance of distributional impacts in terms of policymaking.

The results show that while there can be net gains from each investment discussed, the distributional effects of each are very different.

The findings will be useful for the development community and agribusiness policymaking.

This paper investigates residential sanitation collection (RSC) pricing under two different service delivery arrangements: (1) the municipal RSC arrangement where municipal employees collect residential refuse, and (2) the contract RSC arrangement where private sector firms, under contract with a municipality, collect residential refuse. The results of the study indicate that municipal RSC prices are significantly higher than contract RSC prices. Furthermore, municipal RSC prices exhibit greater variability than contract RSC prices. These findings suggest that contract pricing is consistent with pricing in a competitive market.

Agenda for knowledge creation within inter-project alliances and inter-firm supply chain networks has been extensively debated. However, the existing knowledge networks within consultant-supplier interfaces in the architecture, engineering and construction (AEC) industry seem to be vague, loose, incidental and insignificant. This study examines factors affecting knowledge networking intention (KNI) within construction service supply chain (CSSC) networks.

Data analysis was conducted on a quantitative survey of 161 consulting professional service firms in Tanzania, employing stepwise regression modelling as the statistical technique.

The results indicate that three types of knowledge inertia (KI) exert varying effects on KNI. While both procedural (PI) and learning inertia (LI) negatively impact KNI, experience inertia (EI) has no impact on KNI. In addition, knowledge governance (KG) mechanisms are found to strongly strengthen and leverage the negative effects of PI and LI on KNI and the positive link between EI and KNI within outbound and heterogeneous CSSC actors, with formal KG having greater leverage than informal KG.

The study offers guidance on how managers of PBOs should strategically orchestrate knowledge governance mechanisms within CSSC networks to leverage KI behaviours.

Current literature on KNI, KI and KG within CSSC networks offers a limited understanding of how KI behaviours influence KNI of project-based organizations (PBOs) in tapping vibrant outbound peripheral knowledge. The research presents two major original contributions. First, the empirical evidence contributes to deepening the current understanding of how heterogeneous external knowledge within consultant-supplier interactions is negatively influenced by KI. Lastly, the study suggests formal and informal knowledge governance strategies for managers on how to counteract KI forces, thus extending the theoretical debate on KNI, KI and KG literature.

The purpose of this paper is to deal with one of the technical difficulties of private and social cost–benefit analysis, i.e. the choice of the proper cost–benefit aggregation rule (or method) to use, when a private capital investment decision has to be taken or a public project appraisal has to be carried out.

Although the considerable amount of existing literature, the problem of the choice of the right mathematical aggregation rule is still an open one. The majority of authors claim that net present value is a superior method and thus it is the one to be always used. Other authors try to show that various aggregation methods, under specific conditions, arrive at the same recommendation. An exceptional case is the field of education economics where the internal rate of return is widely used.

This paper offers a survey of this controversial topic which focuses on some clear cut formal properties of the various aggregation methods and considers the empirical characteristics of the different fields of application. Its main conclusion is that no “correct” aggregation rule, always applicable in all decision frameworks, can exist.

Its main objective is to supply clear guidelines to orient practitioners and help the teaching on this topic. Its main conclusion is that no “correct” aggregation rule, always applicable in all decision frameworks, can exist. On the contrary, even if one restricts her/himself to a particular class of investments, often no clear-cut selection can be made.

Although adolescents and older adults are often targets for nutritional change interventions, little has been done to explore how people in these transitional life phases perceive the matter themselves. The aim of this paper is to explore and compare adolescents' and older adults' own perceptions of the barriers and facilitators of a change towards healthier eating.

This study design consisted of four focus groups that were conducted with adolescents and older adults to identify their health orientations, and their expected and experienced outcomes and self-efficacies in implementing approach and avoidance behaviours in relation to healthy eating, i.e. increasing consumption of fruit and vegetables and decreasing consumption of soft drinks and red meat.

The study resulted in a number of interesting insights, e.g. that older and younger participants alike: were keen not to seem “overly healthy” to their important others, had a demonstratively detached orientation towards healthy eating and felt that their diets were generally healthy (although this was generally disproved by their self-reported intake data).

The study and findings reported in this article contribute by providing the first steps towards a better understanding of how social cognition and self-efficacy perceptions related to healthy eating develop in the transitional phases of adolescence and older adulthood. In order to complement and validate the findings of the study; and with the aim of facilitating efficient nutritional change interventions directed at adolescents and older people, further studies should be conducted.

This paper specifies how to construct and validate an instrument based on multi‐item scales for the cataloguing and measurement of managerial and organizational capabilities on the basis of management perceptions. The construction and reduction of the scales have been reinforced by the Delphi and retesting techniques. The use of this methodology was illustrated in a sample of Spanish industrial firms. The paper enhances the value of the instruments for a resource‐based view with regard to the faithful and rigorous measurement of its key concept, distinctive competences. The scales created provide consistent empirical evidence to remove doubts surrounding managerial self‐evaluation, including those arising from problems of self‐esteem and reinforcement effects. In addition, the paper provides empirical evidence to support the predictive ability of distinctive competences on current and long‐term performance variability.

Sport events organizers have recently undertaken to disclose to the general public instances where firms have conspired to ambush the official sponsors. In doing so, they have sought to sensitise audiences to sponsors' valuable contribution. However, what is the effect of such disclosure on ambush marketers' brands? This study aims to answer this question, using an experimental approach.

Two successive experiments were conducted. The first study used a student sample (n=120) and a fictitious brand. The second study used a before‐and‐after experiment with control groups (n=480), using four real brands and print disclosure articles. Data was collected from six French metropolitan areas and analysed using Repeated Measure ANOVA and MANOVA.

Ambush marketing disclosure is associated with lower attitudes towards the ambusher's brand. Two variables moderate this effect: involvement in the event and attitude towards sponsorship, both of which worsen the negative influence of ambush disclosure on audiences' attitudes.

While the empirical work reflects one national context and one specific sport event, these findings are the first to empirically support the notion that disclosure of ambush practices adversely impacts ambushers' brand.

These results offer official sponsors and event organisers an effective alternative strategy to legal protection, with demonstrated effects on the core target audience of the event.

The literature has alluded to possible perverse effects of ambush marketing. This study is the first to draw an analogy with corrective advertising to test and demonstrate the impact of ambush disclosure on ambushers' brands.