Using an algorithm suggested by Berrebi and Silber (1987) and assuming that the population within any decile is distributed uniformly between its bounds a and b, the paper shows that the intradecile inequality is generally not important and may be ignored. This finding is useful in empirical...

The microeconomic foundations of the demand for insulation are constructed. In the corresponding derived demand relationship, the price of heat appears explicitly as an explanatory variable for the quality demanded of insulation. Its exclusion from the estimated equations and the exclusion of...