Purpose -There appears to be an ever-insatiable demand from markets for organisations to improve their products and services. To meet this, there is a need to provide business process improvement (BPI) methodologies that are holistic, structured and procedural. Therefore, this paper describes research that has formed and tested a generic and practical methodology termed model-based and integrated process improvement (MIPI) to support the implementation of BPI; and to validate its effectiveness in organisations. This methodology has been created as an aid for practitioners within organisations. Design/methodology/approach -The research objectives were achieved by: reviewing and analysing current methodologies, and selecting a few frameworks against key performance indicators. Using a refined Delphi approach and semi-structured interview with the "experts" in the field. Intervention, case study and process research approach to evaluating a methodology. Findings -The BPI methodology was successfully formed and applied by the researcher and directly by the companies involved against the criteria of feasibility, usability and usefulness.Research limitations/implications -The paper has demonstrated a new knowledge on how to systematically assess a BPI methodology in practice. Practical implications -Model-based and integrated process improvement methodology (MIPI) methodology offers the practitioner (experienced and novice) a set of step-by-step aids necessary to make informed, consistent and efficient changes to business processes. Originality/value -The novelty of this research work is the creation of a holistic workbook-based methodology with relevant tools and techniques. It extends the capabilities of existing methodologies.

Strategic positioning of a manufacturer concerns choosing those service, production and supply chain related activities that an organisation should carry out internally, and those that should be external and under the ownership and control of suppliers, partners and customers. This paper describes research that has investigated how manufacturers make this decision and what, if any, are the characteristics of a successful approach to forming such decisions. Six UK manufacturing companies have been studied in-depth and, in each case, the decision making processes that practitioners actually apply have been explored, recorded and analysed. This study has revealed distinctly different styles of thinking across these companies. Based on this insight the paper proposes three key principles that manufacturers should adopt when forming strategic positioning decisions.

The quest for reliable and adequate power supply in Nigeria has brought about a surge of interest in renewable energy generation, particularly from wind, solar, hydro and biomass resources including municipal solid waste. Waste-derived energy raises unique interest because of the magnitude of benefits to environmental protection and socio-economic advancement. The successful operation of Waste-to Energy (WtE) facilities in Nigeria requires continuous supply of solid waste and enabling environment amongst other factors. This study conducted a state-level assessment of the WtE potential of municipal solid waste (MSW) in Nigeria. Our findings show that the electricity generation potential for the different states in Nigeria varied from 31 -205 MW, depending on state's waste generation capacity. The country's annual electricity generation potential from MSW was estimated to be 26744 GWh/year, with 89% of the states having sufficient generation capacity at minimum regulatory electricity generation requirement of 50 MW. But, based on current realities such as poor collection efficiencies, Nigeria's exploitable WtE capacity from MSW was below 3800 GWh/year, with all the states having less than 50 MW capacity. On-site power generation such as dedicated power station for industrial estates and corporate users can be a feasible form of distributing energy generated from WtE facilities. The outcomes of this study are important in informing the siting of WtE facilities in Nigeria and for enabling policy framework.

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Sub‐Saharan African (SSA) countries need adequate energy to achieve socio‐economic growth and development. According to recent statistics, only 30 per cent of the entire population have access to power, making the region the highest in the world with people without access to electricity. This is in sharp contrast with the abundant energy resources available, which could be harnessed to provide the needed energy. The purpose of this study is to identify and analyse the determinants of aggregate energy demand in SSA. Reliable secondary macroeconomic and energy data were collected from publicly available and widely used databases. The study uses a panel cointegration technique to examine the determinants of energy demand in SSA, over the period from 1980 to 2014, for selected countries in the region. Our results reveal that income is the predominant factor behind the increase in energy demand in SSA, with the highest elasticity. Furthermore, energy demand in SSA conforms to a priori expectations of a negative price elasticity. The results are in line with the theory of demand. Significantly, we also find that urbanisation an important role for energy demand. Stringent energy conservation policy and other recommendations flow from the findings.