Purpose The purpose of this research is to examine the role of worry versus sadness in influencing young consumers’ purchase decisions and to clarify the differences across the worry–consumption versus the sadness–consumption relationships. Design/methodology/approach Three studies were...

Energy is always the important material for economic growth and social development. A new index of energy efficiency called total factor energy efficiency (TFEE) consists of energy, capital, labor and other input that produce GDP as output. TFEE index is accounted by DEA through multiple...