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282 Uppsatser om Reliability - Sida 12 av 19

En empirisk studie av Value-at-Risk-prediktering med hjälp av GARCH-modeller

This paper describes a study examining four different GARCH models AR(1)-GARCH(1,1), AR(1)-EGARCH(1,1), AR(1)-APGARCH(1,1) and AR(1)-GJR-GARCH(1,1), and their ability to predict future volatility and thereby providing more reliable estimates for Value-at-Risk. The study is based on daily observations for the return of the OMX Stockholm 30 Index, during the time period 31st December 1996 to 29th December 2006. The coefficients for these GARCH models have been estimated using a five-year rolling estimation window, with one-year lags, for five different in-sample-periods. These five in-sample-periods, and the coefficients given by them, have been used to generate five out-of-sample predictions for the volatility in each year. Using these volatility predictions, the daily Value-at-Risk has been calculated for confidence intervals of 90 percent, 95 percent, and 99 percent, respectively, during the time period between 1st January 2001 and 29th December 2006.

Topprestation

To achieve peak performance as a young elite athlete, there are many psychological andphysical factors that have impact on human?s performance. Factors that affect theperformance interplay and interact must work to maintain ability to perform at its peak.The purpose of this study is to examine the factors that contribute to peak performance.Data collection method of the study has been done with a questionnaire, addressed toyoung elite athletes on a secondary school. It was 87 respondents who participated onvoluntary and anonymously conditions. The respondents consisted of men and womenbetween 16 and 19 years old.

Förändring av verkstadslayout på Munters AB

The Energy Performance Certification in Sweden was developed as a tool to achieve the Government's target to reduce Sweden's energy consumption by 20 percent by 2020. The Energy Performance Certificate has previously received some criticism for not fulfilling its purpose. Questions that formed the basis for this report is how the energy performance certification provides support to buyers of single-family houses and if the energy performance improved in terms of Reliability. The report begins with a background description that describes how the energy declaration works and some of the findings of previous evaluations and surveys. A survey to investigate the broker's position to energy performance have been conducted as well as interviews with buyers and sellers of houses. An investigation whether the energy performance can vary between different calculation programs, depending on various assumptions made by the energy declarant, has been made.Brokers and sellers have proved negative attitudes towards energy performance, particularly brokers.

Användarundervisning och uppsatsarbete: Några ekonomistudenters uppfattningar av undervisningens betydelse för informationssökning och -användning

The purpose of this Master?s thesis is to investigate a few economy students? perceptions of user education connected to essay work, focusing on aspects of information literacy of importance to the studies and the role of the user education in this context. The study was conducted with a qualitative approach. Five economy students were interviewed regarding their experiences of working with information, their perceptions of user education and its impact on their essay work. The interviews were transcribed and analysed with Bruce?s (1997) relational model of information literacy.

Nollavräkning av entreprenadprojekt: Teoretisk grund och praktisk betydelse

The purpose of this study is to investigate the method called zero recognition that is used in accounting for construction contracts when the outcome is uncertain. When this is the case it is hard to make the necessary estimates needed for the percentage of completion method to be used. Both the meaning of the method from an accounting perspective and the practical importance and purpose of the method is investigated. The method used for this study is the qualitative one and the deductive model is used to relate the theory with the empirical research. The theoretical background consists of accounting theory and theories about individuals, companies and markets.

Automatisk bedömning av reglerkretsarsprestanda

In this thesis, a computer program that in a simple way can calculate the performance of control loops at the refinery Preemraff Lysekil has been created. The computer program has been adapted to the environment at Preemraff Lysekil. Theories for evaluation has been studied in aspect of Reliability and of automatic implementation. The evaluation has been carried out from data collected directly from control loops at the refinery and from simulated control loops with implemented errors. Among the studied methods are Harris index and Stattin´s oscillation index.

Sjuksköterskans erfarenheter av att kommunicera med patienter med afasi till följd av stroke : litteraturstudie

Dysfagi, sväljsvårigheter, förekommer i alla åldrar och vid en rad olika sjukdomstillstånd och skador. Evidensläget för de olika metoder som används för diagnostik och intervention vid dysfagi är i många fall osäkert. Syftet med denna studie var att ur ett evidensperspektiv granska forskningen med avseende orofaryngeal dysfagi hos vuxna. En omfattande databassökning genomfördes i PubMed mellan april och augusti 2011, begränsad till engelska och svenska studier, med deltagare över 19 år. Sökorden som användes var bland annat dysphagia (43 259 träffar), deglutition disorders (36 278 träffar), intervention, management, assessment, evidence, validity och Reliability.

Evidensbaserad diagnostik och intervention vid orofaryngeal dysfagi hos vuxna : En verksamhetsknuten litteraturstudie

Dysfagi, sväljsvårigheter, förekommer i alla åldrar och vid en rad olika sjukdomstillstånd och skador. Evidensläget för de olika metoder som används för diagnostik och intervention vid dysfagi är i många fall osäkert. Syftet med denna studie var att ur ett evidensperspektiv granska forskningen med avseende orofaryngeal dysfagi hos vuxna. En omfattande databassökning genomfördes i PubMed mellan april och augusti 2011, begränsad till engelska och svenska studier, med deltagare över 19 år. Sökorden som användes var bland annat dysphagia (43 259 träffar), deglutition disorders (36 278 träffar), intervention, management, assessment, evidence, validity och Reliability.

Underhållsstrategi enligt Professional Maintenance metodiken som en del av World Class Manufacturing

As a result of global competition, companies within the automotive industry are required to improve their production systems to achieve sustainable and competitive production. To attain operational excellence, companies have adopted concepts like lean and World Class Manufacturing (WCM).In order to deliver, companies need to increase the availability and Reliability of production equipment. This demands focus on both operational and strategic maintenance, and efficient equipment acquisition and management. The main objective of this thesis is to identify processes and success factors that are necessary for improved maintenance performance. By conducting a case study and by performing a literature review, the following has been studied: 1) how companies within the automotive industry work with maintenance and maintenance strategies, 2) implementation of maintenance strategies, and 3) new acquisition and spare parts management for maintenance. The results show that basic maintenance concepts and related terms are well defined in the literature.

Tjänstekvalitetens inverkan på kundlojalitet : när en tjänst går från att vara avgiftsfri till att bli avgiftsbelagd

Title: The impact of service quality on customer loyalty - when a service changes from being free to become surcharged Authors: Carl Johan Olsson, Marcus Johansson and Victor Carlsson Supervisor: Hans LundbergCourse: Bachelor thesis in business administration, 15 Credits (15 ECTS) Keywords: Service quality, customer loyalty, price movementPurposeThe purpose of this essay is to increase the understanding if the perceived quality by the service users correlates with a future loyalty to a service when it cease from being free, to become charged.? Does the perceived quality of a service by the service users affect a future loyalty to a service, when it cease from being free, to become charged?MethodIn this essay we have chosen to implement a quantitative research method based on a survey. This choice was made in order to reach a sufficient large amount of service users and empirical data to answer our problem.ConclusionsAccording to the theory, customer satisfaction can be expressed through a comparison between customer?s expectations and the experience of using a service, and there are also positive correlations between service quality and customer satisfaction. Additionally, loyalty is based on service quality and customer satisfaction.

Customer Perceived Service Quality

The purpose of this study is to develop a general understanding of the areas of alliances and service quality as well as their relation to each other, through a consumer perception. Further, to discover more detailed and close up knowledge of customer perceived service quality within airline alliances. This is done by identifying particularly significant dimensions in the service process that have an influence on the perceived service quality.The thesis is based on qualitative study using a critical incident technique to explore the issue of service quality. In the research of the material the iterative approach has been used. The primary information sources are the interviews with customers-members of airline alliance.

Miljöinformation i förvaltningsberättelsen :

The first of May 2005 changes were made in the Annual Accounts Act. The 2006 Annual Report of companies with more than ten employees or assets over 24 million SEK must include environmental information in the directors' report if it affects the company's development, result or position. A survey made by KPMG 2007 investigating the environmental information of companies listed on Large Cap Segment of the OMX Stockholm exchange showed that only a third of the companies, included in the survey, complied with the new law requirements. I have examined how the environmental information in the directors' report is formulated and why the information is formulated in that fashion. I have examined seven companies listed on the Large Cap Segment of the OMX Stockholm exchange. Four companies from the materials sector and three banks from the financials sector were included in the survey.

Se men inte röra - problemet med den performativa besökaren

Cloud computing is a new buzzword within the IT-industry, and introduces a whole new way of working with IT. The technique delivers web based services, which results in that the user no longer needs to install an application locally on a computer. Since the application no longer needs to run on a local entity, but in a datacenter located on a service provider, the users no longer need any specific hardware more than a computer with an internet connection. Cloud computing also offers IT-infrastructure and development environments as services, these three service types is better known as cloud services. Through the usage of different types of cloud services, the need for maintenance and hardware is significantly reduced.

Det obligatoriska skolväsendets pedagogiska strategier i arbetet med elever som har AD/HD. : Pedagoger i en integrerad respektive segregerad undervisningsform berättar och beskriver

The survey aims to highlight and describe how the schools' teaching strategies look like in the work of pupils from the neuropsychiatric disability AD/HD (Attention Deficit / Hyperactivity Disorder). The pedagogical strategies have been investigated in an integrated and segregated teaching method. The study is qualitative in nature where the interviews conducted, first with a student who has been diagnosed AD/HD but also with teachers from each school who is well versed in student teaching and work. The results of the study show that knowledge and commitment about AD/HD is crucial to students' role and function in school. If knowledge and commitment is sufficient for the student teaching tailored to student needs and the risk of misunderstandings occur decreases. Security is a key factor for students who have been diagnosed AD/HD and learning form in itself is no guarantee that students will feel safe. Students have in the two teaching methods stressed that they feel safe at school and with their education and therefore has no teaching method preferred.

Öppet eller dolt? : En studie om viral marknadsföring på Youtube

AbstractPurposeThe purpose of this thesis is to examine the Swedish students? habits regarding videos on Youtube and create an understanding towards what makes them viral. The purpose is also to state how companies should make use of visble and hidden viral marketing to get their message out to the customers.MethodThe thesis uses both a qualitative and a quantitative method. At first there was a qualitative focus group with 6 Swedish students. The focus group generated valuable information which later was used to create surveys.

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