J.D. Johnson – författare

In this book the foundations and applicability of the Generalized Fechner-Thurstone Utility Function are laid out. It is shown how by removing the constraint of fixed preferences in the neoclassical consumer theory, utility theory can be used to develop non-parametric indices along with elasticities of the marginal rates of substitutions. It is also shown that whereas the existence of a fixed preference utility function is not always guaranteed for different demand functions, there will always exist at least one Generalized Fechner-Thurstone Direct Utility Function. Furthermore, analysis using the Fechner-Thurstone Direct Utility Function is clear and simple and does not rely on ad hoc Taylor expansions. The construction of different true-cost-of-living indices, the comparison of North American consumers, and a habit formation model are developed to show the usefulness of the Generalized Fechner-Thurstone Direct Utility Function.

In this book the foundations and applicability of the Generalized Fechner-Thurstone Utility Function are laid out. It is shown how by removing the constraint of fixed preferences in the neoclassical consumer theory, utility theory can be used to develop non-parametric indices along with elasticities of the marginal rates of substitutions. It is also shown that whereas the existence of a fixed preference utility function is not always guaranteed for different demand functions, there will always exist at least one Generalized Fechner-Thurstone Direct Utility Function. Furthermore, analysis using the Fechner-Thurstone Direct Utility Function is clear and simple and does not rely on ad hoc Taylor expansions. The construction of different true-cost-of-living indices, the comparison of North American consumers, and a habit formation model are developed to show the usefulness of the Generalized Fechner-Thurstone Direct Utility Function.

Maintaining or increasing stand productivity is the concern of forest land managers worldwide. Consequently, there is increasing interest in understanding the impact of environmental stress on productivity and the development of management strategies that ameliorate or reduce the deleterious effects. Invited scientists gathered in Fort Collins, Colorado on July 30, 1985, to present the current state of knowledge regarding the impact of environmental stress on forest stand productivity. Particular attention was given to elucidating the mode of action by which individual stress elements reduce productivity. Environmental factors and the levels that constitute stressed (suboptimal) conditions in forest stands were identified, and the effects of stress intensity and duration on key stand parameters, including photosynthesis, respiration, assimilate partitioning, senescence and mortality, were emphasized. The role of genetics and silvicultural treatments in lessening the stress impact on stand productivity was presented, particularly in regards to alternative methods for environmental stress management. Modeling of stand dynamics in response to environmental stress was explored as an effective research and management tool. VIII Improved forest management practices will develop as we improve our understanding of the nature of important environmental stresses and as we comprehend their impact on tree and stand performance, manifested through physiological processes and genetic potential. This book is dedicated to such an understanding and comprehension.