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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
151

Three Essays on Environmental Issues in Brazil

Hales, Essence January 2015 (has links)
No description available.
152

Innovation technologique duale : une analyse en termes d'influence et de cohérence / Dual technological innovation : an analysis in terms of influence and coherence

Meunier, Francois-Xavier 15 September 2017 (has links)
L’objet de cette thèse est de traiter l’innovation technologique duale en proposant une approche systémique du concept de dualité et en développant une méthodologie d’évaluation du potentiel dual des technologies. Le travail empirique repose sur l’analyse systématique de la production de connaissances au sein des grandes entreprises ayant une activité de défense. La première partie traite des transferts technologiques entre la sphère civile et la sphère de défense. Le concept de dualité y est abordé au travers du Système Dual d’Innovation (SDI) qui embrasse dans un cadre cohérent l’ensemble des composantes de la dualité (technologique, mais aussi organisationnelle et marchande, etc.). L’étude de la diffusion de la connaissance au sein du SDI permet de mesurer le potentiel dual des technologies. Dans la seconde partie, ce cadre d’analyse est appliqué aux plus grandes entreprises innovantes du domaine de la défense. L’analyse des portefeuilles de brevets de ces firmes révèle des interdépendances qui défissent des ensembles de connaissances synergétiques nommés Systèmes de Connaissances Technologiques (SCT). C’est le potentiel dual des 26 SCT ainsi définis qui est évalué par la suite à l’aide des outils de la cohérence technologique d’une part et ceux de la dominance économique d’autre part. / The purpose of this thesis is the treatment of technological innovation with a systemic approach of the concept of duality and a methodology for evaluating the dual-use potential of technologies. The empirical work is based on the systematic analysis of the knowledge production within large companies with a defense activity. The first part deals with technological transfers between the civil area and the defense area. The concept of duality is looked through the Dual Innovation System (DIS), which embraces in a coherent framework all the components of duality (technological, but also organizational and market, etc.). The study of knowledge diffusion within the SDI allows the assessment of dual-use potential of technologies. In the second part, this framework of analysis is applied to the largest innovative companies in the field of defense. The analysis of the patent portfolios of these firms reveals the interdependencies that define the synergistic knowledge sets known as Technological Knowledge Systems (TKS). It is the dual-use potential of the 26 SCT as defined, which is subsequently evaluated using technological coherence tools and those of economic dominance.
153

The determinants of FDI and FPI in Thailand: a Gravity Model analysis

Thanyakhan, Sutana January 2008 (has links)
Thailand has been one of significant recipients of foreign direct investment (FDI) among developing countries over the last 30 years, and has recorded rapid and sustained growth rates in a number of different industrial categories. Thailand has shown a clear policy transition for foreign investment over time from an import-substitution regime to an export-oriented regime. Before the 1997 Asian Financial Crisis (1985-1996), Thailand had the fastest growing level of exports in manufactured goods among Asian economies. FDI plays a significant role in the Thai economy. Thailand has been pursuing different foreign investment policies at different times depending on the development objectives and economic situation in the country. The main objective of this research is to evaluate the determinants of FDI and foreign portfolio investment (FPI) in Thailand using the extended Gravity Model. Panel data is used to estimate and evaluate the empirical results based on the data for the years 1980 to 2004. It also examines the FDI flows between different locations and their geographical distances in Thailand. The primary research question addresses what factors motivate, attract, and sustain the FDI and FPI in Thailand. In addition, this study also examines the effects of the 1997 Asian Financial Crisis on the inflows of FDI and FPI into Thailand. The results show that the inflows of FDI in Thailand, which are supply-driven, are significantly influenced by its 21 largest investing partners. The 1997 Asian Financial Crisis has no impact on the determinants of the inflows of FDI into Thailand, but positively influences the inflows of FPI into Thailand. Our results also show that increases in GDP and trade between investing partners and Thailand potentially attract more FDI and FPI into Thailand. Investing partners closer to Thailand draw more portfolio investment into Thailand than distant partners – emphasising that distance has a negative impact on the portfolio investment but a negligible impact on the FDI.
154

Three essays on ownership concentration in New Zealand

Jiang, Haiyan January 2009 (has links)
There are two competing theoretical debates about the impact of ownership concentration on organisational outcomes, namely efficient-monitoring hypothesis and conflict-of-interest (strategic-alignment) hypothesis. New Zealand has a distinctively concentrated ownership structure. This raises an important research question: Does concentrated ownership in New Zealand perform an efficient monitoring or opportunistic function? This question remains unanswered due to the very limited research on ownership structure in New Zealand. This research considers three specific where studying the function of ownership concentration is likely to be insightful. Three contexts are: CEO compensation scheme, corporate voluntary disclosures and investor perception of ownership structure in the stock market. This research further contributes to the existing literature by decomposing ownership into four mutually exclusive groups, namely financial institution-, government-, management- and other company-controlled ownership structures. The different impacts of ownership concentration under each type of controlling ownership structure are investigated. The findings of Essay One reveal that concentrated ownership is a significant contributor to the poor CEO compensation pay-for-performance relationship in New Zealand listed companies. However, reduced ownership concentration promotes the alignment between CEO compensation and firm performance. These results imply that large shareholders in New Zealand do not play a monitoring role in curbing managerial power; rather it exacerbates the poor relationship between CEO compensation and firm performance. In Essay Two, regression results show that companies characterised by financial institution-controlled ownership structure tend to make significantly fewer (more) disclosures at high (low) concentration levels. In contrast, firm observations in the high concentration group with government- and management-controlled ownership structures have considerably higher voluntary disclosure scores compared with their low concentration counterparts. With respect to the linearity assumption, the relationship between ownership concentration and voluntary disclosure practices unveil a non-linear pattern, indicating that the efficiency of large shareholders’ monitoring varies with the level of intensity of ownership concentration. The results of Essay Three demonstrate that ownership concentration in general is positively associated with information asymmetry observed around annual report release date. This is supportive of investor-adverse selection towards ownership concentration, and such an adverse selection problem is strongly associated with financial institutional and managerial shareholdings. Also, ownership concentration decreases stock liquidity, so no result is found in line with the ownership concentration liquidity hypothesis. When voluntary disclosure is taken into account, regression results suggest that disclosure significantly attenuates information asymmetry risk related to ownership concentration. This effect is particularly pronounced for firms with management-controlled ownership structure. Findings highlight the importance of corporate disclosures under concentrated ownership structure in eliminating information asymmetry and enhancing market efficiency in New Zealand.
155

Assessing demand for organic lamb using choice modelling

Rutledge, M. P. January 2009 (has links)
The worldwide market for organic foods is growing fast, but New Zealand meat producers have been slow to respond. Specifically, New Zealand producers have little or no organic lamb products for export or domestic sale. Part of the reason for this hesitancy to meet demand with supply is that the nature of the demand and consumer willingness to pay for the product is not well understood. The purpose of this study is to investigate New Zealand organic food consumers’ attitudes towards organic food and production methods and to evaluate consumer willingness to pay for an organic lamb product. Data for this study was collected using computer aided personal interviewing (CAPI) in supermarkets and speciality stores in Christchurch and Wellington. The study questioned consumers about their consumption habits, attitudes towards organic food and production methods and presented choice modelling scenarios to test willingness to pay for different attributes of lamb. Factor analysis is used to group the 12 attitudinal questions into three factors which were then placed into a two step cluster analysis to create consumer segments. Choice modelling was then used to measure consumer preferences for the tested attributes of lamb. From the factor and cluster analysis three distinct consumer segments were found and labelled as Committed Organic Seekers, Convenience Organic Consumers and Incidental Organic Consumers. These labels reflect each group’s organic consumption habits and attitudes towards organic food. The choice modelling results show that there is a willingness to pay for organic lamb. The three identified consumer groups state they would pay a premium of 61%, 44% and 26% respectively for organic lamb over standard pasture raised lamb. This paper gives an insight into consumer attitudes and preferences towards a product that could provide a way for New Zealand farmers to increase their returns. It contributes to the body of knowledge about the likely consumer profiles of regular consumers of organic food. There are only a few other studies that have attempted to measure consumer attitudes and willingness to pay for organic meat, however, the author is not aware of any published example of a study that has specifically investigated demand for organic lamb anywhere in the world. The study provides information about stated willingness to pay for five different attributes of lamb; this information should be of value in assisting the industry by showing which product offerings are likely to generate the highest sale price.
156

Three Papers on the Effects of Competition in Engery Markets

Choi, Wai Hong January 2013 (has links)
This thesis comprises three papers examining the impact of competitive pricing or competition on participants in energy markets. The scope of each paper is narrow but focused, dealing with one particular aspect of competition in each market under study. It is hoped that results from these three studies could provide valuable policy lessons to public policy makers in their task to create or maintain competition in different energy markets, so as to improve efficiencies in these markets. The first and second papers examine the load shifting behavior of industrial customers in Ontario under real time pricing (RTP). Using Hourly Ontario Energy Price (HOEP) data from 2005 to 2008 and industry-level consumption data from all industrial customers directly connected to the transmission grid, the first paper adopts a Generalized Leontief specification to obtain elasticities of substitution estimates for various industry groups, while the second paper adopts a specification derived from standard consumer theory to obtain price elasticity estimates. The findings of both papers confirm that in some industries, industrial customers who are direct participants of the wholesale market tend to shift consumption from peak to off-peak periods in order to take advantage of lower off-peak prices. Furthermore, in the first paper, a demand model is estimated and there is evidence that the marginal effect of hourly load on hourly price during peak periods is larger than the marginal effect during off-peak periods. An important policy implication from the results of these papers is that while RTP is currently limited to industrial customers, it does have positive spillover effects on all consumers. The third paper uses a unique panel dataset of all retail gasoline stations across five Canadian cities from late-2006 to mid-2007 to examine the effect of local competition on market shares and sales of individual stations. The base empirical specification includes explanatory variables representing the number of same brand stations and the number of different brand stations within a 3km radius to identify brand affiliation effect. It is found that the number of local competitors is negatively correlated with market share and sales. More interestingly, a same brand competitor has a larger marginal impact on market share and sales than a competitor of a different brand. These findings suggest that additional local competition leads to cannibalization of market share among existing stations, rather than create new demand. Another implication is that relying only on the number of different brands operating within a geographic market could understate the competition intensity in the local market.
157

Three Papers on the Effects of Competition in Engery Markets

Choi, Wai Hong January 2013 (has links)
This thesis comprises three papers examining the impact of competitive pricing or competition on participants in energy markets. The scope of each paper is narrow but focused, dealing with one particular aspect of competition in each market under study. It is hoped that results from these three studies could provide valuable policy lessons to public policy makers in their task to create or maintain competition in different energy markets, so as to improve efficiencies in these markets. The first and second papers examine the load shifting behavior of industrial customers in Ontario under real time pricing (RTP). Using Hourly Ontario Energy Price (HOEP) data from 2005 to 2008 and industry-level consumption data from all industrial customers directly connected to the transmission grid, the first paper adopts a Generalized Leontief specification to obtain elasticities of substitution estimates for various industry groups, while the second paper adopts a specification derived from standard consumer theory to obtain price elasticity estimates. The findings of both papers confirm that in some industries, industrial customers who are direct participants of the wholesale market tend to shift consumption from peak to off-peak periods in order to take advantage of lower off-peak prices. Furthermore, in the first paper, a demand model is estimated and there is evidence that the marginal effect of hourly load on hourly price during peak periods is larger than the marginal effect during off-peak periods. An important policy implication from the results of these papers is that while RTP is currently limited to industrial customers, it does have positive spillover effects on all consumers. The third paper uses a unique panel dataset of all retail gasoline stations across five Canadian cities from late-2006 to mid-2007 to examine the effect of local competition on market shares and sales of individual stations. The base empirical specification includes explanatory variables representing the number of same brand stations and the number of different brand stations within a 3km radius to identify brand affiliation effect. It is found that the number of local competitors is negatively correlated with market share and sales. More interestingly, a same brand competitor has a larger marginal impact on market share and sales than a competitor of a different brand. These findings suggest that additional local competition leads to cannibalization of market share among existing stations, rather than create new demand. Another implication is that relying only on the number of different brands operating within a geographic market could understate the competition intensity in the local market.
158

Nurses' caring labour in residential aged care : a feminist economics analysis

Adams, Valerie January 2008 (has links)
This thesis contributes to the feminist economics' literature on caring labour with an empirical study of aged care nursing. This study critiques the positivist paradigm of neoclassical economics and argues that the Cartesian dualisms deeply embedded in both neoclassical economics and medicine result in an undervaluing of caring labour. Data was collected from nurses and managers working in residential aged care facilities in metropolitan Adelaide. Qualitative methods are utilised to uncover the role of nursing culture, underpinned by notions of gender, embedded in aged care nurses' work. This study explores how dualistic constructs such as love versus money and public versus private have become central to nursing work and impact on the way nurses' work is valued in residential aged care. The feminist economics' concept of provisioning provides a framework in which nurses' work can be valued. This framework is used to present a matrix to illustrate how nurses' work crosses these dualisms and uses a 'web of meaning' as a conceptual device to explain the inter-connectedness of nurses' work. The feminist economics' concept of provisioning is used as a means of overcoming the limitations that a dualistic world view has imposed on understanding the complexities of paid caring work. The empirical evidence presented in this thesis shows that aged care nurses do both nursing work and training in unpaid time and are vulnerable to exploitation. The remuneration they are paid is inadequate when the difficulty of the work they do and the level of responsibility they take is recognised. Their work contains a strongly non-commodified element, where the development of two-way relationships between nurses and the people they care for, their relatives and friends, other staff and the wider community are important. A key conclusion is that nurses focus on the intrinsic rewards of their work, which are undermined because aged care nursing is under-resourced. In particular, nurses do not have enough time to be caring which impacts negatively on their job satisfaction and the level of care they can provide.
159

Economic non-market valuation techniques : theory and application to ecosystems and ecosystem services : a case study of the restoration and preservation of Pekapeka Swamp : an application of the contingent valuation method in measuring the economic value of restoring and preserving ecosytem services in an impaired wetland : a thesis submitted in partial fulfillment of the requirements for the degree of Master of Philosophy in Economics at Massey University, Palmerston North, New Zealand

Ndebele, Tom January 2009 (has links)
This thesis explores the theoretical basis of non-market valuation techniques; discusses in detail, the Contingent Valuation Method (CVM) and the Travel Cost Method (TCM); highlights the advantages and disadvantages of various non-market valuation techniques and their suitability under different conditions; and identifies the Contingent Valuation Method as the most appropriate non-market valuation technique to apply to Pekapeka Swamp, the case study site. The overall objective of the study is to apply the most appropriate non-market valuation technique to estimate the total economic value (TEV) of the restoration and preservation of Pekapeka Swamp and to test Hawke’s Bay Regional Council’s (HBRC) restoration programme for the Pekapeka Swamp using economic efficiency criteria. An appropriate contingent valuation mail survey questionnaire was designed to elicit responses to the dichotomous choice (DC) and open-ended valuation questions, and to collect socio-economic data and information on households’ attitude towards the environment. Responses to the survey questionnaire were analysed (using ordinary least squares regression for the open ended question, and logistic regression, for the DC question) to identify the factors that influence households’ willingness to pay (WTP) for the restoration and preservation of the Pekapeka Swamp and to estimate TEV. A number of functional forms of the logit and open-ended WTP models were fitted from which WTP functions were estimated. Households were asked a DC question followed by an open-ended question regarding the value they placed on the restoration and preservation of Pekapeka Swamp. Out of an initial mail-out of 958 questionnaires, an overall response rate of 46.13% was achieved after two follow-ups. Results from the final usable sample of 231, after removing protests and inconsistent responses, indicate that households in the Hawke’s Bay region would pay, on average, between NZ$30.00 and NZ$76.89 per annum for five years. Unit value ranges between NZ$17,898 and NZ$45,866 per hectare per year; and net present values for the restoration and preservation programme for Pekapeka Swamp based on our ‘best estimates’ range between NZ$5.05 million and NZ$18.20 million depending on the model and discount rate used.
160

Agricultural greenhouse gas emissions : costs associated with farm level mitigation : a thesis presented in partial fulfilment of the requirements for the degree of Master of Applied Economics in Economics at Massey University, Palmerston North, New Zealand

Wolken, Antony Raymond January 2009 (has links)
Agricultural greenhouse gas emissions within New Zealand account for 48 percent of all national greenhouse gas emissions. With the introduction of the emissions trading scheme farmers will soon be liable for their emissions, introducing additional physical constraints and financial costs. Farmers that still operate within the sector will have two options to meet emissions targets; to purchase carbon credits from the open market, or mitigate farm level emissions at added costs to the farmer. This study examines the latter case of assessing farm level options for mitigating greenhouse gas emissions, and quantifying the physical and financial costs associated with mitigation strategies. Results show that, based on the assumptions in the study, there are available options for dairy farmers to profitably meet Kyoto protocol emissions targets. Sheep and beef farmers can increase profit, but cannot meet Kyoto protocol emissions targets, through examined scenarios.

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