Based on a survey of energy-efficiency policy measures covering a total of 85 countries and economies，with detailed case studies focusing on the fields of industry，transportation，buildings，this paper aims to describe and evaluate energy-efficiency trends and policies at global level. Beyond a review of existing energy-efficiency measures，this evaluation draws some conclusions on the advantages and drawbacks of different policies，enabling countries embarking on energy-demand management policies to benefit from the experience of the most advanced countries.

Despite the still important role of market instruments and economic incentives，regulations are increasingly used，particularly in sectors in which the market fails to give appropriate signals. Because of limited public budget，there is increasing involvement of the private sector in supporting investments in energy efficiency，through energy service companies（ESCOs） and energy utilities. The study highlights a number of innovative measures and concludes with eight main recommendations.