This paper provides a review on the most relevant research works conducted to solve natural gas transportation problems via pipeline systems. The literature reveals three major groups of gas pipeline systems, namely gathering, transmission, and distribution systems. In this work, we aim at...

The aim of this study is to investigate the impacts of technological innovation onemployment growth. These impacts are separated according to the type of innovation -process or product innovation - due to possible different correlations between thesetypes of innovation and employment growth....