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The existing Forth Road Bridge near Edinburgh in Scotland at present carries 24 million vehicles annually, which is twice its design capacity. The need for a second Forth Road Bridge is discussed in this paper. There is currently a proposal for design and construction of the second Forth Road Bridge crossing. Some organisations are in favour of the project and yet others are against it. If the project were sanctioned, it would be private sector funded under the government’s PFI/PPP programme. This paper provides an economic evaluation of the proposed second Forth Road Bridge crossing. Firstly, a review of studies carried out on the traffic characteristics across the Forth is provided. Secondly, a critical analysis of the economic tools and techniques available for cost‐benefit analysis is given. The concept of cost of capital for government projects is also discussed and distinguished from cost of borrowing. The paper then provides present values of expected revenues from toll charges supported by extensive sensitivity studies for various assumptions regarding changes in toll levels, concession periods, future traffic growth levels and cost of capital. The main conclusions of the study are that the scheme is economically viable subject to the following limitations. If only Northbound traffic is tolled, this would require quadrupling of the current toll levels for the expected revenues to be adequate to fund design, construction and maintenance costs of a second standard bridge crossing and approach roads over a 30‐year concession period. If both Northbound and Southbound traffic were tolled, the present toll levels would need to be doubled on award of the concession contract and increased annually by the Retail Price Index (RPI) for the scheme to be economically viable. If the new crossing is to include the possibility of a heavy rail link under the dual carriage way, the expected present values of toll revenues provided they are increased as suggested above would be adequate only to fund design and construction costs of the new crossing and maintenance of both bridges. The project as whole would only be economically viable if the public sector funded the design, construction and maintenance costs of the required tunnels and approach roads.

Demand–supply matrices with adverse consequences has occasioned government response to concession initiatives in infrastructure in Nigeria. However, concession-based projects have been trailed by administrative and legal controversies. While this scenario has negatively impacted the acceptability of a concession contract, there is, nevertheless, a paucity of research effort aimed at developing a sustainable framework. The purpose of this paper is to develop a conceptual framework for the evaluation and allocation of obligations of parties, thereby enhancing the synergy and cooperation between the public and private sector organization.

Data were obtained through a questionnaire administered to professionals in concession-based contracts in southwestern Nigeria, which included architects, estate surveyors, quantity surveyors, engineers and builders, accountants/bankers/economists and lawyers. The respondents were selected using random and respondent driven sampling approaches. The questions were structured to ensure that the respondents have appropriate experience in concession-based projects and hold appropriate positions as decision-makers so as to give credence to the collected data.

The study identified 47 contractual obligations in the specific context of developing countries. Based on “half-adjusting principle”, 13 of the obligations notably cost of land acquisition and cost of social disturbances were allocated to the public party; 18 of the obligations notably project design and cost of feasibility study were allocated to the private party; and 16 of the obligations including preparation of terms of a contract and relocation of third party facilities were shared by the parties.

The framework benchmarked the categorization of public and private parties’ obligations in concession-based public–private partnership (PPP) contracts. The study has the implication for the evaluation and allocation of obligations of parties, which could mitigate the risk of failure of PPP projects in relation to the specific context of developing countries.

The purpose of this paper is to develop compensation mechanisms against risks factors that impact private party’s costs in concession-based projects as a basis for minimizing failure rate of concession contracts.

The study extended earlier work on the factors that impact private party’s costs in concession-based projects by developing compensation mechanisms against the risks factors. It commenced with semi-structured face-to-face interviews which were launched with different stakeholders organizations that had been involved in PPP contracts in the Southwestern Nigeria. Responses from the interview were analyzed using interpretative phenomenal analysis via ATLAS.ti6/7. The mechanisms identified from literature review were assessed through structured questionnaire which were administered on professionals selected from governmental-based organizations (ministries, agencies, corporations/parastatals, etc.), private developers/concessionaires, law firms, banks among others, using the respondent-driven sampling technique. The robustness of the quantitative data was achieved by including the initial respondents to the interview in the questionnaire survey. The quantitative data were analyzed using percentile for better understanding of the flexibility between “most” and “more” preferred mechanisms. The criterion for the selection of appropriate mechanism(s) for the factors was based on minimum average of 20.0 percent (the ratio of maximum percentage (100 percent) of the respondents to total number of variables) suggesting the five identified mechanisms. The results in both cases of qualitative and quantitative assessments were compared. Based on the convergences of the findings, preferred compensation mechanisms were developed against concession contract risk factors.

Options of mechanisms were developed against specific investment risks that are consequent to the defaults of the public party in PPP contracts. The findings indicate that the mechanisms in extant literature with respect to administration of traditional models are relevant for PPPs. The study, however, identified new concepts, including “compensative” “zero compensation,” “equitable sharing” and “adjustment of concession period,” which are suitable in specific cases of PPP contracts.

The study contributes to the body of knowledge on mechanisms for improving PPP project performance. Moreover, insights were provided on mechanisms that satisfy private investor in case of specific risk factors investigated. The findings are therefore expected to guide private party in the preparation of concession contract package that minimizes investments risks and thereby attracting more private investors both from local and international environments. The findings of the study would also contribute to the body of information for documenting standard conditions of concession contract in Nigeria.

Studies on critical performance factors on PPP were extended by developing compensation mechanisms against the investment risks that impact private party’s cost.

The purpose of this study is to develop penalty measures against concessionaires’ defaults as a mechanism for protecting the interests of parties (public and private) in public–private partnership (PPP) contracts for enhancing project delivery.

The research methodology is a mixed qualitative and quantitative approach. This study commenced with an in-depth literature review, which provided the basis for identification of penalty measures in construction contract management. The qualitative assessment was based on semi-structured face-to-face interviews, which were aimed at identifying the underlying pattern of the penalty measures, and the quantitative assessment was based on a structured questionnaire. In both cases, respondents were stakeholders’ organizations that had been involved in PPP contracts in the southwestern region of Nigeria. These include industrial practitioners from government-based organizations (ministries, agencies, corporations/parastatals, etc.), private developers/concessionaires, law firms, banks, etc. The sample size was selected using a respondent-driven sampling approach, as the comprehensive lists of the participants in PPP contracts are not readily available in the Nigerian construction industry. Responses from the interview were analysed using interpretative phenomenal analysis via ATLAS.ti7. The quantitative data were analysed using percentile for flexibility between “most” and “more” preferred mechanisms.

This study developed mechanisms that defined the rights of the public party to redress underperformance of PPP contracts consequent to the defaults of the private party. “Step-in-right” and “termination of the contracts” were preferred against specific cases of “delayed execution”, “abandonment of the project”, “bankruptcy of the concessionaire” and “non-compliance with design and specifications”. With respect to “shortfall in performance against established dates”, the results converged on “monetary fine” and diverged on “step-in-right” and “termination of the contracts”.

The study contributes to literature on mechanisms for enforcing PPP project performance. Besides, defining rights and obligations of the parties in specific events of underperformance of the concessionaires in PPP contracts is a significant step towards the development of standard conditions of contract for managing PPP projects in which the model is being newly adopted.

Project management studies on PPP were extended by defining the liabilities that are consequent to the defaults of the private party and the mechanisms for their enforcement.

The purpose of this paper is to investigate the critical decision factors of public–private partnership (PPP) concession which is complex due to a number of uncertain and random variables. To identify critical factors contributing to determination of concession period, this study reviews the published literature. It also identifies countries contributing most in PPP research. As a whole, it provides a mutually beneficial scenario by formulating a decision-making matrix.

This paper reviews the literature published during the period 2005-2015. A two-staged methodology is followed on retrieved scholarly papers: first, countries contributing to PPP are identified along with authors and affiliated institutions. Second, using frequency analysis of shortlisted critical factors, yearly appearance and stakeholders affected, a decision matrix is formulated.

The most contributing country toward PPP research is China, followed by the USA both in terms of country- and author-based contribution. In total, 63 factors are identified that affect PPP concession out of which, 8 per cent are highly critical and 21 per cent are marginally critical for decision-making.

Critical factors of PPP concession period will be identified with the help of decision-making matrix. This will help in adequate resource allocation for handling critical factors ensuring project success. Researchers may also understand the research trends in the past decade to usher ways for future improvements.

This paper reports findings of an original and innovative study, which identifies critical success factors of PPP concession period and synthesizes them into a decision-making matrix. Many of the previous studies have identified and ranked the critical factors but such a synthesis has not been reported.

Questions have been raised about the ability of HIV/AIDS and sexuality education for young people to modify behaviour, its potential for producing undesirable effects, and dubious rigour in evaluating it. A review of the literature conducted for the World Health Organisation’s former Global Programme on AIDS in 1993, and a more recent update commissioned by the United Nations Joint Programme on HIV/AIDS (UNAIDS) in 1997 examined these issues. The latter review of 68 articles found good support for the efficacy of HIV/AIDS and sex education in reducing unwanted outcomes of young people’s sexual behaviour. Of 53 articles describing specific interventions, 22 reported significant decreases in coital activity or its markers (e.g. pregnancy) in those who received the intervention(s) compared with controls, and 27 studies reported no effect. Although three studies found a positive relationship between receiving sex education and increased sexual activity, they should be viewed in the context of overwhelming evidence in the opposite direction, and methodological limitations to the extent to which they can be generalised. Lack of rigour and an adequate description of interventions is, however, a feature of many of the studies evaluating the effects of HIV/AIDS and sex education. Although the reviews demonstrate the value of appropriately conducted and targeted interventions, formal sex/HIV education is only one source of information about sexual issues for young people. Further, timing education prior to the onset of sexual intercourse may increase the chance that young people will adopt measures aimed at protecting their health.

The goal of this review is to present the literature which provides evidence of the association between health risks and the workplace economic measures of time away from work, reduced productivity at work, health care costs and pharmaceutical costs.

A search of PubMed was conducted which combined the keyword search terms “health risks” with “health costs”, “pharmaceutical costs”, “absenteeism”, “productivity”, “workers compensation”, and “presenteeism”. High quality studies were selected and combined with studies known to the authors.

A strong body of evidence exists which shows that health risks of employees are associated with health care costs and pharmaceutical costs. A growing body of literature also confirms that health risks are associated with the productivity measures of time away from work, workers' compensation, absenteeism and presenteeism. Furthermore, studies have shown that changes in risks are associated with changes in health care costs, time‐away‐from‐work and presenteeism.

The paper shows that measures of success will continue to be important as the field of worksite health management moves forward. Research needs to progress beyond simple associations to the evaluation of changes in costs, trends and transitions over time.

The importance of corporate wellness programmes has been recognized by many countries. It is only in recent years that organizations in Singapore have begun to implement wellness programmes on an organization‐wide scale. This is also in line with the Singapore Government’s recent emphasis on healthy lifestyle and health campaigns for the public. Thus, there is a growing trend for organizations in Singapore to offer wellness programmes. Attempts to establish the benefits which may be reaped from such investment. Describes how findings from the study indicate that employees in organizations with wellness programmes generally have a more positive attitude towards their organizations, express higher job satisfaction and satisfaction with the fringe benefits provided for them. However, no significant differences were found between employees in organizations with and without wellness programmes in terms of level of work stress, self‐reported absenteeism rates, satisfaction with working conditions, co‐worker relations and accomplishment. As employees are becoming more health conscious, given the benefits of the wellness programmes, recommends that management should not hesitate to adopt health promotion activities in the workplace.