Introduction Currently, one of the major drawbacks of Diesel engines compared to classic gasoline engines is their noise. Legislation on maximum noise levels is becoming more stringent all over the world, and the demand for quiet engine designs is growing day by day. For these reasons, many efforts are being undertaken in order to reduce this disadvantage, especially as acoustical comfort now b...

Convenience markets with gasoline pumps have flourished throughout the United States in the past 10 years. The growing demand for self-service gasoline and convenience grocery goods, readily accessible with fast service, have fueled a boom in the convenience market business. As transportation engineers and planners, we are asked to determine the impacts of developments on the transportation sys...

In this lecture I want to briefly describe some techniques for evaluating dynamic econometric models like the models for gasoline demand you have been estimating. Until now, we have implicitly assumed that these models satisfied the classical assumptions of the Gaussian linear model. In particular, we have assumed that the error sequences {ut} were iid and approximately Gaussian, thus justifyin...

Individual heterogeneity is an important source of variation in demand. Allowing for general heterogeneity is needed for correct welfare comparisons. We consider general heterogenous demand where preferences and linear budget sets are statistically independent. We find that the dimension of heterogeneity and the individual demand functions are not identified. We also find that the exact consume...

Efforts to reduce energy use and environmental damage in China require an understanding of the rapidly rising demand for energy. Household use of fuels, electricity and gasoline has changed dramatically in response to rising incomes, changing prices and changing demographics. We estimate income and price elasticities for these energy types using a two-stage budgeting method, applying the AIDS m...