| At present, with the Chinese economy quickly development, energy consumption also increasesrapidly as well as CO2emissions. Those problems challenge the energy security and environmentalprotection in China, and also become great barrier to rapid and sustainable economic development.Under such circumstance, improving energy efficiency, widely regarded as the most cost-effectiveway for reducing energy consumption, has been adopted by Chinese government with certainattention. For providing more valuable information to decision-makers, this study empiricallyestimates provisional energy efficiency and productivity under different production goals usingnon-radial directional distance function, which expects to investigate the energy efficiency and itschange more accurately. According to the finding reported in this study, the provisional energyefficiency in China during2005and2009increased to some extent.Because of the potential existence of the rebound effect, the impact of energy efficiencyimprovement on energy consumption becomes more complex. Through empirically estimating thedirect rebound effect for passenger transport in urban China, this thesis confirms the existence ofrebound effect in China. Further, the empirical finding that the direct rebound effect would decreasewith the increase in households’ expenditure is consistent with previous researchers’ theoreticaldeduction. It can also be concluded from this thesis that the effect of energy efficiency improvementon decreasing energy consumption would be limited. As a result, decision-makers should takerebound effect into consideration in making and implementing energy efficiency measures. |
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