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Higher economic output as measured in gross national product (GNP) may not always imply a higher quality of living. It has been the outcome of the long debate between growth and development of a nation. The aims of economic growth should be reconsidered because it has polluted the environment, wasted natural resources, harmed people’s quality of life, and failed to alleviate socioeconomic problems. It is also a common phenomenon to the economies of the South Asian region. The study is thus conducted to show the existence of long-run relationship and short-run interplays between output efficiency of energy use (GEU) and carbon efficiency of energy use (CEU) in the panel of countries in the South Asian region for the period of 1971–2014. The results show that there is a long-run and short-run association between energy efficiency in output and carbon emission as respectively measured in GEU and CEU. This means that in South Asia, energy consumption leads to an increase in both gross domestic product and carbon emissions. When GEU is used as the independent variable in vector error correction model (VECM), the result reveals that any short-run disequilibrium from the long-run stable connection will be adjusted over time, and the long-run stable relationship will be restored.

This study investigates the extent to which the popular forms of contract adopted in the Middle East (ME) address collaboration. The purpose of this paper is to assess how collaboration features weaved into the construct of integrated project delivery (IPD) may impact projects in the ME. In this context, the study identifies features in IPD and existing delivery methods that may enable or inhibit collaboration and evaluates their impact on project success from the perspective of various contract managers in the ME.

The study employs structured face-to-face interviews with 41 construction industry practitioners in top contract management positions in the ME to evaluate the significance of collaboration features in IPD. Data collected from the structured interviews/surveys were analyzed using statistical tools in R and Excel.

Results reveal that while experts recognize the collaboration benefits which IPD features may contribute to a project, the current contractual environment of the industry does not optimally encompass these features. The current status of project delivery does not favor IPD implementation nor does it enable its collaborative features.

This study contributes to the growing international body of knowledge addressing the application of collaborative contracts in construction projects, and it is innovative in evaluating collaboration features within IPD and exiting project deliveries in the ME.