• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 1906
  • 879
  • 629
  • 142
  • 100
  • 48
  • 47
  • 46
  • 45
  • 44
  • 44
  • 29
  • 24
  • 19
  • 17
  • Tagged with
  • 4469
  • 1754
  • 765
  • 689
  • 660
  • 624
  • 605
  • 552
  • 478
  • 411
  • 408
  • 382
  • 374
  • 370
  • 354
  • 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.
221

Systematic Risk, Financial Indicators and the Financial Crisis: A Risk Study on International Airlines

Jiayi, Li January 2016 (has links)
This thesis studies the relationships between systematic risk, financial indicators and the financial crisis from the perspective of international airlines. The thesis uses the CAPM beta of airline stock as the proxy for airline systematic risk and explores its relationships with six financial indicators and the financial crisis which broke out in the second half of 2008. The findings of 28 international airlines over the period of 1997 to 2002 and 2007 to 2012 indicate that (1) airline systematic risk is negatively related to profitability and positively related to size, and these relationships hold over time periods, (2) the negative relationship between airline systematic risk and operational efficiency exists while it changes the sign over recent time periods, (3) airline systematic risk positively responds to financial leverage while its significance is influenced by samples used, (4) the positive relationship between airline systematic risk and liquidity is only significant over the first period, (5) no findings suggest airline systematic risk is related to growth. Moreover, the relationship between airline systematic risk and the financial crisis is not straight-forward because of lacking clear-cut judgment of the financial crisis year for airlines. Moreover, this thesis also tries panel data methods and finds both the same and different results compared with the model without panel data methods.
222

Public Procurement: A performance management perspective / A case study at the Swedish Defence Materiel Administration

Klevensparr, Johan January 2016 (has links)
Purpose - The purpose of this thesis is to explore what performance indicators that exist within public procurement in defence sector context and how such performance indicators can be categorized.   Methodology - For the purpose of this thesis, an abductive approach was applied. This thesis is characterized as an exploratory multimethod qualitative research, which emphasize a single case study and a comprehensive research literature review. The empirical data was collected using semi-structured interviews, observations and documentary. The empirical data was analyzed using a data display and analysis, whereas a descriptive and content analysis was used for the research literature review.     Findings - Initially, a comparison between the conducted research literature review and the empirical study resulted in 117 performance indicators were abled to be identified. Furthermore, with support from the research literature review, the empirical study and the frame of reference, categorizations of performance indicators were possible. Through research literature review, the author were able to identify eight dimensions cost, quality, time, flexibility, sustainability, innovation, risk and compliance, all of which can be aligned to public procurement. Through the empirical study, seven elements were identified as categories. These elements include business strategy and development, operations management, category management, supplier management, customer management, procurement and expert and system support, all of which with aligned performance indicators.  Through the frame of reference, three decision-levels were used as categorization of performance indicators. The decision-levels could either be strategic, tactical or operational. Finally, a merger of decision-making levels and elements resulted in a conceptual model, visualizing how elements with aligning performance indicators within public procurement could be organized and structured.    Research limitations - At first, this thesis uses only one database for the research literature review, limiting the search result of publications concerning the research topic of this thesis. Secondly, single cases study within the defece sector, which limits the amount of information and may prevent transferability possibilities for other public procurement organizations.   Future research - From the result of this thesis, several potential research opportunities has been discovered. First, following-up and measure PIs in public procurement in order to justify the “real” compliance to rules and regulation. Another one is possible challenges with implementing PIs in public procurement organizations. Lastly, measuring process maturity in public organization would allow benchmarking possibilities among public organizations and defece sector procurement.
223

Local economic indicators : practitioners' needs and associated issues of provision and use

Cole, Denise January 1997 (has links)
The local economic information base for the UK does not meet the demand for local economic indicators emerging from the private and public sectors. This thesis identifies an 'information gap' between the need for and provision of local economic indicators in the public and private sectors. The existence of this 'gap' emerges in the literature review. Empirical evidence of the gap is provided by the thesis' postal survey (which investigates the use of local economic information in forecasting). The dearth of local economic indicators is then confirmed in the analysis of guided interviews with practitioners. The literature review and practitioner interviews identify a rising need for local economic indicators over the last decade. The increased political significance of local space has led to a growth in the need for information at this scale from the public sector. Organisational restructuring and the privatisation of utilities has also led an increase in demand from the private sector for local economic information. This need has been compounded by deficiencies in those local economic indicators which are currently available, in terms of quality, organisation and accessibility. The literature suggests that standardisation of the criteria for organising local economic indicators into a database would greatly assist the organisations that seek this information. However, no such set of criteria has been forthcoming. The thesis therefore incorporates a feasibility study which focuses on the establishment of a standardised local economic database. The research findings steer suggestions for its development, and local economic indicators for the Local Authority District (LAD) ofLuton are collected and organised into a database as a case study. The methodology is documented, and can be reproduced to develop a similar database for any other LAD in the UK.
224

Performance measures : preventive strategies to limit negative secondary behaviour induced in selected incentive-based companies

Coetzee, Johannes Gerhardus, Mathur-Helm, Babita 03 1900 (has links)
Mini-research report presented in partial fulfillment of the requirements for the degree of Master of Business Administration at the University of Stellenbosch. / ENGLISH ABSTRACT: This research report is focused on the phenomenon that various Key Performance Indicators (KPIs) used by an organisation as part of their Performance Management systems in support of their strategic objectives will sometimes also drive non-productive behaviour. Thus although the intention might be that the KPI should promote a specific strategic objective, the very same KPI might drive additional behaviour that might not be aligned with the strategic objectives at all or could even be downright destructive. The purpose of this research study is to develop an analysis methodology that can be used to identify those KPIs that drive negative secondary behaviour (the intended positive behaviour being the primary behaviour). The methodology must also assist in identifying preventive measures that can be used to mitigate the risk posed by the negative behaviour. An interesting aspect of this research report is that it cross-references between the business and engineering disciplines by means of adapting techniques used in engineering to assist with a business management problem. The result of this research is a KPI Effectiveness Analysis that has gone through a trail phase where a number of case studies were analysed by means of this tool. The results were conclusive and the analysis tool found to be of great assistance. / AFRIKAANSE OPSOMMING: Hierdie navorsingsverslag fokus op die verskynsel dat Sleutel Prestasie Indikators (SPI's)wat deur ondernemings gebruik word as deel van hul prestasiebestuur-stelsels en wat ten doel het om die strategiese doelwitte van die onderneming te ondersteun, soms ook nie-produktiewe gedrag bevorder. Dus alhoewel dit die intensie met die SPI mag wees om gedrag te bevorder wat die strategiese doelwitte sal ondersteun, dieselfde SPI ook gedrag kan bevorder wat glad nie die strategiese doelwitte ondersteun nie en dalk self destruktief van aard kan wees. Die doel van hierdie navorsingstudie is om 'n analise metodologie te ontwikkel wat gebruik kan word om die SPI's te identifiseer wat negatiewe sekondêre gedrag bevorder (waar die bedoelde gedrag as die primêre gedrag gesien word). Die metodologie moet ook die identifisering van moontlike voorkomende stappe help fasiliteer wat gebruik kan word om die risiko van negatiewe gedrag te vernminder. 'n Interessante aspek van hierdie navorsingsverslag is dat daar 'n kruisverwysing gedoen word tussen die besigheids- en ingenieursdissipline deur tegnieke wat in die ingenieursrigting gebruik word aan te pas ten einde te help met 'n besigheidsbestuursprobleem. Die resultaat van die navorsing is 'n SPI Effektiwiteitsanalise wat tydens 'n toetsfase in 'n paar gevallestudies geanaliseer is deur hierdie metode te gebruik. Die resultate was konkreet en bewys dat die analise metode van groot hulp is.
225

Practical conservation planning from local to continental scales using freshwater invertebrates

Simaika, John Pascal 12 1900 (has links)
Thesis (PhD)--Stellenbosch University, 2011. / ENGLISH ABSTRACT: Dragonflies (Insecta: Odonata) are a valuable tool for assessing aquatic systems and have been used as indicators of ecological health, ecological integrity, and environmental change, including climatic change. In four separate studies I explored the usefulness of dragonflies as surrogates in biomonitoring, site prioritization and indication of global climate change. In the use of dragonflies for biomonitoring, I field-tested a freshwater ecological integrity index, the Dragonfly Biotic Index (DBI), based on dragonfly assemblages at the local scale, and compared the DBI to a standard freshwater benthic macroinvertebrate-based freshwater health index. Overall, dragonflies were more sensitive to changes in river condition than were macroinvertebrates, and the DBI site value and macroinvertebrate scores were highly significantly correlated. I conclude that dragonfly assemblages in the form of a DBI are an excellent tool for environmental assessment and monitoring freshwater biodiversity, with the potential to replace benthic macroinvertebrate-based freshwater quality assessments. In the second study, I used the DBI to prioritize sites for conservation action in South Africa. Using a selected set of top prioritized sites, I compared the DBI’s performance to that of a rarity-complementarity algorithm. Site prioritization using the DBI reveals that CFR sites protect Red Listed taxa rather well. The rarity-complementarity algorithm represents all species, but without greater emphasis on the rare and threatened species. I conclude that the DBI is of great value in selecting biodiversity hotspots, while the algorithm is useful for selecting complementarity hotspots. The third study was made possible by the recent completion of a continental assessment of freshwater biodiversity, which revealed that patterns of richness and threat of four well-studied aquatic taxa largely coincide at the continental scale. Using only dragonflies, I built a protected areas network for Africa using spatial planning software. I then compared the performance of the existing African reserve network and that of known global biodiversity hotspots against the model, and identified sites of conservation concern. Although the current reserve network covers 10.7% of the landscape, the proportional representation of species geographic distributions in reserves is only 1.1%. The reserve network is therefore inefficient, and many areas of conservation priority that are not formally protected remain. The advantage of operating at the fine scale, while covering a large geographic area is that it shifts the focus from the large-scale hotspots to smaller priority areas within and beyond hotspots. In the fourth study, I created species distribution models of dragonflies in an El Niño-prone biodiversity hotspot in South Africa, and predicted the changes in species richness, geographic range and habitat suitability, forty and eighty years from now. According to the model results of two different emissions scenarios, at least three species will be lost from the area by 2050, and four by 2080. The remaining species are predicted to persist with reduced geographical ranges, at generally higher elevations. Most species presented here thrive quite well in artificial environments, that is, engineered ponds or dams. It is therefore unlikely that loss in connectivity will play a role for these species. / AFRIKAANSE OPSOMMING: Naaldekokers (Insecta:Odonata) is waardevolle instrumente om akwatiese sisteme te assesseer, en is al gebruik as aanwysers van ekologiese gesondheid, ekologiese integriteit en omgewingsverandering, insluitend klimaatsverandering. In vier studies het ek die nut van naaldekokers as surrogate in biomonitering, area prioritisering en indikasie van globale klimaatsverandering ondersoek. In die benutting van naaldekokers in biomonitering, het ek ´n varswater ekologiese integriteits indeks, die Dragonfly Biotic Index (DBI), wat gebaseer is op naaldekokergemeenskappe op die plaaslike skaal, getoets en dit vergelyk met ´n standaard bentiese makroinvertebraat-gebaseerde varswater gesondheids index. Naaldekokers was meer sensitief vir veranderinge in riviertoestand as makroinvertebrate, en die DBI lokaliteit waarde en makroinvertebraat telling was beduidend gekorreleer. Die gevolgtrekking was dat naaldekoker gemeenskappe in die vorm van die DBI ‘n uitstekende instrument is vir omgewings assessering en die monitering van varswater biodiversiteit, met die potensiaal om bentiese makroinvertebraat-gebaseerde varswaterkwaliteit assessering te vervang. In die tweede studie, het ek die DBI gebruik om areas te prioritiseer vir bewaringsaksie in Suid Afrika. Met die gebruik van ‘n geselekteerde set top prioriteit areas, het ek die DBI se prestasie vergelyk met die van ‘n rariteit-komplemetariteit algoritme. Area prioritisering met die gebruik van die DBI het aangedui dat CFR areas taxa op die Rooi Lys goed beskerm. Die rariteit-komplementariteit algoritme verteenwoordig alle spesies, maar beklemtoon minder skaars en bedreigde spesies. Die gevolgtrekking was dat die DBI van meer waarde is in die selektering van biodiversiteits ‘hotspots‘, terwyl die algoritme nuttig is vir die selektering van komplementariteits ‘hotspots‘. Die derde studie was moontlik gemaak deur die onlangse voltooiing van ‘n kontinentale assessering van varswater biodiversiteit, wat aangedui het dat patrone van rykheid en bedreiging van vier goed-bestudeerde akwatiese taxa grootliks ooreenstem op die kontinentale skaal. Met die gebruik van naaldekokers, het ek ‘n beskermde area netwerk gebou vir Afrika met ruimtelike beplannings sagteware. Ek het die prestasie van die bestaande Afrika reservaatnetwerk en die van bekende globale biodiversiteit ‘hotspots‘ vergelyk teen die model, en het areas van bewaringsbelang geidentifiseer. Alhoewel die bestaande reservaatnetwerk 10.7% van die landskap dek, is die proporsionele verteenwoordiging van spesies se geografiese verspreiding net 1.1%. Die reservaatnetwerk is dus onvoldoende en baie areas van bewaringsbelang is nie formeel beskerm nie. Die voordeel van op die fyn skaal werk terwyl ‘n groot geografiese are gedek word, is dat dit die fokus van groot skaal ‘hotspots‘ na kleiner prioriteits areas binne en buite ‘hotspots‘ verskuif. In die vierde studie, het ek spesies verspreidingsmodelle van naaldekokers geskep in ‘n El Nino-geneigde biodiversiteits ‘hotspot’ in Suid Afrika, en het veranderinge in spesies rykheid, geografiese verspreiding en habitatsgeskiktheid voorspel, veertig en tagtig jaar van nou af. Volgens die modelresultate van twee verskillende emissie scenarios, sal ten minste drie spesies verlore gaan uit die area teen 2050, en vier teen 2080. Daar word voorspel dat die oorblywende spesies sal voortduur in verkleinde geografiese areas, by groter hoogte bo seespieël. Die meeste spesies hier verteenwoordig floreer in kunsmatige omgewings, soos mensgemaakte damme. Dit is dus onwaarskynlik dat ‘n verlies in konnektiwiteit ‘n rol sal speel vir hierdie spesies.
226

The measurement of economic development : alternative composite indices

Booysen, Frederik Le Roux January 2000 (has links)
Thesis (PhD)--Stellenbosch University, 2000. / ENGLISH ABSTRACT: The success of policies aimed at economic development cannot be monitored and evaluated without development indicators. These indicators are also crucial in comparing levels of development across time and space so as to come a greater understanding of the development process. Yet, economic development does not mean the same thing to everyone. As a result, there exists a variety of indicators of economic development. Five main classes of development indicators are distinguished on the basis of the shift over time in our understanding of economic development (Chapter 1). A distinction is drawn between indicators of national income and economic growth (Chapter 3), employment, unemployment and underemployment (Chapter 4), and poverty and inequality (Chapter 5). Social indicators (Chapter 6) and composite indices (Chapter 7) of economic development represent two futher classes of development indicators. These indicators differ in terms of their content, method and technique, comparative application, simplicity, clarity, focus, availability and flexibility. These main classes of development indicators are evaluated with reference to these dimensions of measurement which are described in detail in Chapter 2. There is no one indicator that can be described as an ideal, all encompassing measure of economic development, at least not in terms of its performance on these dimensions of measurement. Hence, the measurement of development remains imperfect, but nonetheless makes an invaluable contribution to the study of economic development. In fact, development studies will be impossible without access to such a variety of development indicators. Given the importance of development indicators in development studies, two new composite indices of development are presented here to address two specific gaps in indicator research. Indices of Human Security (HSIs) and Inefficiency ratios are developed to determine the extent to which countries have made progress on human security as defined by the UNDP (Chapter 8). Progress is assessed in terms of both effort and outcomes, as well as the extent to which efforts are actually translated into outcomes. Indices of Reconstruction and Development (RDIs) are employed to measure the extent to which the nine provinces of South Africa have made progress on the development objectives described in the Reconstruction and Development Programme (RDP) (Chapter 9). The measurement results suggest that there remain substantial disparities in progress on both human security and reconstruction and development. These new composite indices are also employed to determine those development characteristics associated with progress on human security and reconstruction and development. So, for example, disparities in human security are associated with certain urban and population dynamics, as well as communications capacity and infrastructural development. Progress on reconstruction and development is associated with lower population pressure, higher matric pass rates, less poverty and inequality, and more political representativeness at the provincial level. The RDIs also underscore the extent to which progress on the RDP has not materialised in rural areas. Furthermore, current provincial disparities in progress on reconstruction and development appear still to be indicative of the racial dynamics of development so characteristic of the Apartheid era. / AFRIKAANSE OPSOMMING: Dit is onmoontlik om sonder ontwikkelingsindikatore die sukses van beleid wat gemik is op ekonomiese ontwikkeling te moniteer of te evalueer. Ontwikkelingsindikatore IS ook onontbeerlik III die vergelyking van ontwikkelingsvlakke oor tyd en ruimte om sodoende 'n beter begrip van die ontwikkelingsproses te verkry. Ekonomiese ontwikkeling het egter nie dieselfde betekenis vir almal nie. Gevolglik bestaan daar 'n verskeidenheid van ontwikkelingsindikatore. Vyf hoofklasse van ontwikkelingsindikatore word onderskei op grond van verskuiwings oor tyd in die interpretasie van ekonomiese ontwikkeling (Hoofstuk 1). 'n Onderskeid word getref tussen maatstawwe van nasionale inkome en ekonomiese groei (Hoofstuk 3), indiensname, werkloosheid en onderindiensname (Hoofstuk 4), en armoede en ongelykheid (Hoofstuk 5). Sosiale indikatore (Hoofstuk 6) en saamgestelde indekse (Hoofstuk 7) van ekonomiese ontwikkeling verteenwoordig twee verdere groepe indikatore. Hierdie indikatore verskil in terme van hul inhoud, metode en tegniek, vergelykende toepassing, eenvoud, duidelikheid, fokus, beskikbaarheid en buigsaamheid. Hierdie hoofklasse van ontwikkelingsindikatore word geëvalueer met verwysing na hierdie dimensies van meting, wat in groter besonderhede in Hoofstuk 2 bespreek word. Daar is nie een indikator wat beskryfkan word as 'n ideale, allesomvattende maatstafvan ekonomiese ontwikkeling nie, ten minste nie in terme van die prestasie daarvan op hierdie dimensies van meting nie. Gevolglik is die meting van ekonomiese ontwikkeling onvolmaak, alhoewel dit 'n onskatbare bydrae lewer tot die studie van ekonomiese ontwikkeling. Om die waarheid te sê, ontwikkelingstudies salonmoontlik wees sonder toegang tot so 'n verskeidenheid van ontwikkelingsindikatore. Gegewe die belangrikheid van ontwikkelingsmaatstawwe In ontwikkelingstudies, word twee nuwe saamgestelde indekse hier aangebied om twee spesifieke gapings in navorsing oor ontwikkelingsmaatstawwe aan te spreek. Indekse van Menslike Sekuriteit (MSls) en Ondoeltreffendheidsratio's word ontwikkelom te bepaal tot watter mate lande vordering gemaak het in menslike sekuriteit, soos definieer deur die UNDP (Hoofstuk 8). Vordering word gemeet in terme van sowel pogings en uitkomste as die mate waartoe pogings werklik in uitkomste omskep word. In Hoofstuk 9 word Indekse van Heropbou en Ontwikkeling (HOIs) gebruik om te meet tot watter mate die nege provinsies in Suid-Afrika vordering gemaak het in die bereiking van die ontwikkelingsdoelwitte wat uitgespel word in die Heropbou- en Ontwikkelingsprogram (HOP). Die metingsresultate dui daarop dat daar wesenlike ongelykhede bestaan in beide menslike sekuriteit en heropbou en ontwikkeling. Hierdie nuwe saamgestelde indekse word ook gebruik om te bepaal met watter ontwikkelingskenmerke ongelykhede in menslike sekuriteit en heropbou en ontwikkeling geassosieer word. So, byvoorbeeld, toon dispariteite in menslike sekuriteit 'n verband met sowel stedelike en bevolkingsdinamika as kapasiteit in kommunikasie en infrastruktuur. Vordering in heropbou en ontwikkeling word ook geassosieer met laer bevolkingsdruk, beter matrikulasieresultate, minder armoede en inkomste-ongelykheid, en wyer politieke verteenwoordiging op provinsiale vlak. Die indekse beklemtoon ook die mate waartoe vordering met die HOP nog nie in landelike gebiede gematerialiseer het nie. Verder wil dit voorkom asof huidige provinsiale ongelykhede in vordering met heropbou en ontwikkeling steeds kenmerkend is van die rasse-dinamika agter ontwikkeling wat so kenmerkend was van die Apartheidsera.
227

Prudent ranking rules: theoretical contributions and applications

Lamboray, Claude 03 October 2007 (has links)
Arrow and Raynaud introduced a set of axioms that a ranking rule should verify. Among these, axiom V' states that the compromise ranking should be a so-called prudent order. Intuitively, a prudent order is a linear order such that the strongest opposition against this solution is minimal. Since the related literature lacks in solid theoretical foundations for this type of aggregation rule, it was our main objective in this thesis to thoroughly study and gain a better understanding of the family of prudent ranking rules. We provide characterizations of several prudent ranking rules in a conjoint axiomatic framework. We also prove that we can construct profiles for which the result of a prudent ranking rule and a non-prudent ranking rule can be contradictory. Finally we illustrate the use of prudent ranking rules in a group decision context and on the composite indicator problem.
228

Towards Corporate Sustainable Development : The ITT Flygt Sustainability Index

Pohl, Eva January 2006 (has links)
<p>This thesis suggests a method for measurement of corporate contribution to sustainable development, looking at how well a company stands up to its policies and commitments regarding sustainable development.</p><p>A sustainability index is developed and calculated for ITT Flygt AB over a three years period (2002-2004). The index structure is based on scientific literature and interviews with ITT Flygt and four other engineering companies.</p><p>The purpose of the index is to support corporate sustainability-management.</p><p>The index is calculated by aggregating some forty sustainability-indicators. These indicators are individual to each company and are designed to measure the significant sustainability aspects of the company.</p><p>Besides from providing one aggregated sustainability-value of the company, the index also provides sub-indices, which support the interpretation of the index result.</p>
229

Subjective well-being in patients diagnosed with malignant melanoma.

Dirksen, Shannon Elaine Ruff. January 1987 (has links)
The purpose of this study was to test a theoretical model which predicted subjective well-being in patients who had been diagnosed with malignant melanoma. The theoretical model was developed from empirical findings based on a review of the literature in which health locus of control, social support and self-esteem were identified as significant predictors of well-being. The specific aim of this study was to examine the strength of the predicted relationships between selected psychosocial variables and subjective well-being. The study utilized a nonexperimental correlational design with a causal modeling approach. The convenience sample was composed of 75 individuals (x age = 52.5) who had been diagnosed with malignant melanoma. Subjects completed four instruments which measured the theoretical concepts under study. Two additional instruments were administered which indexed the variables of search for meaning and concern of recurrence. Descriptive statistics were used in examining the demographic and situational characteristics of the sample. Multiple regression techniques were utilized to empirically test the predicted theoretical relationships and to estimate predictive validity for the theoretical concepts. Graphic residual analysis was performed to assess for violations in the statistical and causal model assumptions. Study findings revealed that social support had a direct positive impact on self-esteem (B =.27, R² =.06) and that self-esteem had a direct positive impact on well-being (B =.49, R² =.37). The two demographic variables of employment and income were found to have a direct positive impact on well-being (B =.22 and B =.26, respectively), and resulted in a 10% increase in the total explained variance in well-being. The theoretical model, which was generated to predict subjective well-being in malignant melanoma patients, explained 47% of the total variance in well-being. Research into the variables which influence patient well-being during the cancer experience is vital if nursing is to implement therapeutic interventions which will promote an improved life quality. By intervening with nursing actions that focus on a positive self-esteem, a greater sense of well-being could be attained by individuals diagnosed with cancer.
230

HEALTH PERCEPTIONS, USE OF HEALTH SERVICES AND EMPLOYMENT STATUS OF WOMEN.

Tallmadge, Ann. January 1982 (has links)
No description available.

Page generated in 0.0759 seconds