Although cigarette manufacturers were aware of the addictive properties of nicotine as early as 1962, the information did not become available to the US public until 1979 when the Surgeon General disclosed it (US Department of Health, Education, and Welfare, 1979). This study simulates the...

Travel-time savings tend to be the dominant benefit of transportation improvements in developed countries. We can infer the values travelers attach to travel time from their choices among services that differ in time and money costs. This study applies maximum-likelihood estimation techniques to...