This paper examines the pattern of income mobility during the 1980s and the mid 1990s. It employs a panel of individual income tax returns for the years 1979 through 1995 to study this pattern, and explore whether income mobility has increased during the period. We focus on working age...

Surveys of the top 400 US contractors were conducted in 1979, 1983 and 1993 to identify the areas with potential for productivity improvement in the construction industry. The trends in the findings of these surveys are observed and interpreted. The results indicate that cost control,...

In the past environmental management practices have been based on disparate analysis of the impacts of pollutants on selected components of ecosystems. However, holistic analysis of emission reduction strategies is necessary to justify that actions taken to protect the environment would not...