Housing conditions in Belgium are among the best in OECD countries according to the Better Life Index, as dwellings are of high quality and large, and housing costs are average. However, the steep increase in house prices since 2003 has put market access for first-time buyers under pressure....

This paper measures energy efficiency improvements of US single-family homes between 1997 and 2001 using a two-stage procedure. In the first stage, an indicator of energy efficiency is derived by means of Data Envelopment Analysis (DEA), and the analogy between the DEA estimator and traditional...