No description available.

No description available.

Thesis (Ph. D.)--University of Wisconsin--Madison, 1984. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographies.

Thesis (M.Sc.)--York University, 2008. Graduate Programme in Computer Science and Engineering. / Typescript. Includes bibliographical references (leaves 103-108). Also available on the Internet. MODE OF ACCESS via web browser by entering the following URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pqdiss&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft_dat=xri:pqdiss:MR38845

This thesis is an attempt to apply the technique of input-output analysis to the study of the relations between an economy and the environment which supports it. The opening chapter contains a brief justification of the use of input-output analysis for this purpose. It is argued that input-output models, which recognise many of the interactions among consumers and producers, can be extended so that they also take account of some of the interactions among consumers, producers, and the natural environment. Emphasis is placed upon the flow of materials between the environment and the economy. Waste products flow from the economy to the environment and 'free' goods flow in the opposite direction. There follows, in the second chapter, a review of the work of three writers who have explored the possibility of using general equilibrium and input-output models to study man's impact on the environment. The models presented by these economists are each found to possess unsatisfactory features. The theoretical core of the dissertation is an adaptation of two recently developed input-output models. Waste products and 'free' goods are introduced into both models in several different ways. The data requirements of the various models differ considerably and only the simplest of the models can be applied to the data on waste products and 'free' goods that are currently available. Canadian data, much of which were collected especially for this study, and the methods used in its estimation, are described in the fourth chapter. Chapter five is a summary of the results obtained from using the data on waste products and 'free' goods in conjunction with the Canadian input-output accounts for 1961. These results include estimates of the wastes produced and 'free' goods used in the production and consumption of one dollar's worth of each type of commodity manufactured in Canada. The results also include estimates of the Provincial distribution of waste products and 'free' goods that were associated with Canadian economic activity in 1961. Furthermore, an attempt is made to rank the commodities produced and consumed in Canada, in terms of the relative impact on the environment of their production and consumption. The final experiment illustrates a method of estimating the ecologic implications of changing the pattern of Canadian consumption. To show this an estimate is made of the effects of transferring 50 per cent of Canadian passenger car travel to public transportation. The last chapter of the thesis is a discussion of the uses to which the models and results might be put in formulating Government policy. Various methods are examined of bringing the production of wastes and use of 'free' goods within the realm of the market economy. It is argued that although it is generally more efficient to price the wastes and 'free' goods directly this policy can only serve as a long term goal. In the short term it is suggested that, for administrative reasons, emphasis should be placed on levying taxes on commodities so that their market prices reflect the ecologic cost of their production and consumption. A schedule of the relative sizes of such taxes is estimated using a model developed for the purpose together with the data collected as part of this study. In conclusion, the overall purpose of the dissertation is to suggest a method of analysis rather than to present comprehensive results. The results which are obtained are intended to be no more than indicative of what would be possible if more accurate and comprehensive data were available. / Arts, Faculty of / Vancouver School of Economics / Graduate

Hitherto, most relational database design methods are based on functional dependencies (FDs) and multivalued dependencies (MVDs). Full mappings are proposed as an alternative to FDs and MVDs. A mapping between any two sets, apart from being one-one, many-one, or many-many, is either total or partial on the source and target sets. An 'into' mapping on a set, expresses the fact that an element in the set may not be involved in the mapping. An 'onto' mapping on a set is total on the set. A many-many (into,onto) mapping from set A to set B is written as A[sup=i] m----n B[sup=o]. The mappings incorporate more semantic information into data dependency specification. It is shown, informally, that the full mappings are more expressive than FDs and MVDs. Transformation rules, to generate Boyce-Codd normal form and projection-join normal form schemas from the full mappings, are defined. The full mapping/transformation rules provide a discipline for modeling nonfunctional relationships, within a synthetic approach. / Science, Faculty of / Computer Science, Department of / Graduate

No description available.

This thesis involves construction of input-output models measuring the economic impact of a farming innovation organisation (The Birchip Cropping Group) on the Victorian regional economy of Buloke Shire. The input-output modeling undertaken is of two forms; the first being a simple naïve top-down model, and the second a more sophisticated hybrid model. The naïve top-down model is based on input-output coefficients drawn from the Australian national input-output tables, and is regarded as naïve because these input-output coefficients are not adjusted to take account of local economic factors. The hybrid model uses the same national input-output coefficients as a base, and then modifies these coefficients to better reflect industrial conditions in the Shire using a location quotients-adjustment technique, as well as using original survey data collected from entities operating in Buloke Shire. One of the aims of the thesis is to determine whether the simpler naïve top-down approach produces results consistent with the theoretically more accurate hybrid methodology, and thus whether the naïve top-down approach represents a reliable method of conducting regional economic impact analysis. That is, can such studies be undertaken accurately using a naïve top down approach, or is it necessary to adopt the more resource intensive methodology of a hybrid model. The results of the analysis suggest construction of a hybrid model is advisable, as generally the naïve top-down approach produces over-estimates of the economic effects of the Birchip Cropping Group. That is, it appears the economic impact multipliers estimated with the naïve top-down model are too large, suggesting the time and effort involved in constructing the hybrid model was worthwhile. Using the hybrid model, the conclusion is that the Birchip Cropping Group has a significant affect on the regional economy of Buloke Shire, with the economic impact being estimated at close to $600,000 in additional output, $61,000 in additional income, and 3.5 additional jobs per year.

The aim of the dissertation thesis is to develop a methodology of the compilation of symmetric Time Input-Output tables under the conditions of the Czech Republic. The following aim is to create an input-output model which is based on the compiled symmetric Time Input-Output tables. For the practical applications of this model it is crucial to link the created Input-Output model with the Semi-Dynamic Input-Output model. Semi-Dynamic Input-Output model in the conception of the submitted dissertation thesis takes into account several multiplier effects and presents more comprehensive tool for the use of the Input-Output analyses in this way. The first chapter focuses on the development of the issues linked to the Input-Output tables and analyses on the territory of the Czech Republic and in the world as well. The second chapter which is also theoretical is focused on mapping of different kinds of Input-Output analyses which are done in the world using Physical, Time or Hybrid Input-Output tables. The third chapter is a purely methodological because here it is described the methodology of the compilation of symmetric Time Input-Output tables as well as methodological approach to the various sensitivity analyses. The fourth chapter focuses on the creation Semi-Dynamic Input-Output model and on the formal linking with the Input-Output model based on the Time Input-Output tables. The last fifth chapter is focused analytically. Methods described in the third chapter are applied on the official published data on the Czech economy. The analytical chapter is perceived in the submitted dissertation thesis as a tool for the sensitivity analysis in the sense of validation of the quality of the compiled Time Input-Output tables.

Zugl. Diss. Bern. / Ed. commerciale de la thèse de Berne. Avec un résumé en français. Literaturverz.: S. 131-133.