Den finansiella teorin om effektiva marknader och rationella investerare har allt oftare blivitifrågasatt i takt med att marknaden utvecklats. Realtidskurser, rekommendationer och ryktenpräglar många investerares beslutsfattande och tvingar kanske fram ogenomtänkta beslut.Genom att diskutera och analysera hur riskbenägenhet påverkar investerarnasavkastningsmöjligheter ville jag se om detta öppnar upp möjligheter för så kallade noisetraders och arbitrage traders. Vidare diskuterar jag om marknadspsykologiska effekter kantänkas påverka börskurser över tiden eller om arbitrage traders fungerar som försvarare av deneffektiva marknaden och handlar bort anomalier som de psykologiska effekterna ger upphovtill. Slutsatsen av min diskussion är att investerare inte alltid handlar rationellt och attriskbeteendet hos investerare varierar med deras förväntningar, då riskbenägenheten kan ökavid förlust och minska vid vinst..

This essay discusses and evaluates the international currency market in regards to efficiency. To prove the theory that, the difference between expected and actual exchange rates is explained by the difference in expected and actual interest rates and the difference in expected and actual inflation between countries, a model was developed. This model was inspired by the paper of Sebastian Edwards (1982), and is based on three theories; UIP, IS/LM and the Efficient Markets Hypothesis. The model uses 16 regressions estimated from three pairs of curriencies: $/SEK, £/SEK and ?/SEK.

This essay will explain the effects of decentralisation, and what impact it has on the efficiency to create a better integration for immigrants on the Swedish labour market. Examples of literature that has been examined are Marcus Gossas and Jon Pierre. From these authors, I have been trying to explain the relationship between decentralisation, cooperation and efficiency.Since the end of the Second World War until the middle of 1980, Sweden mostly received labour immigrant. Since then, the immigrant pattern has changed to consist of mostly refugees. Changed immigration patterns together with increasing debts for the Swedish government has lead to decentralisation and cooperation between public authorities has therefore become a target to reach better efficiency.

This paper examines if trading suspensions on Nasdaq OMX Nordic - Stockholm work as a contributing factor in creating a secure trading. This has been made through an event study and examination of abnormal returns. Our results for plus tick suspensions indicate that suspensions fulfill their purpose in creating a more secure trading since the trend of abnormal return we observe prior to a suspension is disrupted. Thus, the suspension is warranted. The conclusion is that the market cannot be completely safe; as the law and practice is structured today an abnormal return is inevitable.

A trading halt is a measure conducted by a securities exchange in order to reduce information imbalances between market participants, thus enabling a higher level of market efficiency. A market is said to be efficient when new information concerning a company is instantly reflected in its stock price, implying that abnormal stock returns cannot be systematically achieved in an efficient market. The purpose of this study is to examine the occurrence of abnormal stock returns following trading halts on the Stockholm Stock Exchange. The study is based on a sample of 64 trading halts executed between January 2003 and February 2008. Historical daily prices for stocks subject to trading halts during the period have been gathered from the Datastream Advance database, while information on date and time of trading halts have been collected from the Stockholm Stock Exchange website.

The purpose of this thesis has been to determine experimentally how good a peltierelement is to convert waste heat from wood burning. Three different peltier elementswere used in a comparison study. The comparison was mainly done to know howmuch power could be obtained from each element. Even, a circuit with a step-upfunction has been created to give a higher output voltage than the peltier elementitself. The result of the experiments was a low output power, the highest valuereached 2.18W.

On-call work has increased substantially in the past 20 years in Sweden, not least in the public sector and most notably in health and social care. This thesis argues that the increase has considerable influence on the prospects of on-call workers in the public services to act as guardians of democracy. Based on theories of Lennart Lundquist, the results of this study show that on-call workers suffers from inferior opportunities to act as democratic guardians in particularly two matters. First; they have fewer prospects than standard employees of professionalism due to lack of education and capacitation. Second; on-call workers have inferior opportunities to protest against wrongs, due to no real formalized possibilities to inform and due to transactional psychological contracts.

AbstractThe purpose of this paper is to compare existing theories and policies on CALL (Computer Assisted Language Learning) with the actual situation among practising teachers of ESL (English as a Second Language) of secondary schools in Sweden. The evaluation focuses on the differences between theories and reality, and discusses why, if any, the differences exist. Some background information on second language acquisition is provided, and recent theories and standpoints within the field of CALL are mentioned to highlight the differences between theory and reality. The evaluation was made by handing out a survey to 33 teachers of ESL, asking questions about their use of computers in their everyday teaching. The survey shows that the gap between the theories and standpoints within the field of CALL, and the reality of teachers in schools often is huge.

Foods that stimulate health and satisfy consumer expectations are needed. In a consumer´s perspective, products that provide several kinds of health benefits, without any call for major changes in their behaviour are needed on the market. With this increasing interest in health promoting food product, one of the biggest challenges for the food industry is to find the conditions and right position on the market and find the opportunities to enter the market successfully. New products with added health values can be developed to cure and counter welfare diseases as in this case for diabetics type 2. Swedish food companies have a desire to respond to welfare diseases and one welfare disease is diabetes type 2. Many of them have an ambition to develop new products to respond to the growing population and find a supply that could suit their customers.

This study attempts to examine the existence and development of price differences in the car sector in Europe. The time period is between 1995, the year of the Swedish entrance in the European Union, and 2003. The study is based on data supplied by the European commission, on a bi-annual basis. Both price differences in general in the EU, and price differences between Sweden and other countries in the EU are examined. The theoretical law of one price is related to the economic integration of the EU and the car sector.

This paper examines job coaching on the Swedish labour market. The study uses trygghetsråden, which are organizations established by an agreement from the labour and employer side, as a starting point for the study. In addition, the study examines the phenomenon from the perspective of the job coaches themselves and the coaches clients. The study concludes that job coaching is defined by the coach and the client's common goal of finding a suitable match for the client on the labour market. The job coach helps the client reach the goal of an appropriate job by making him or her aware of his or her competences and preferences.

I nära tio år har främst amerikanska placerare utnyttjat strategin carry trade för att skapa positiva avkastningar. Strategin innebär att lån tas på en marknad med låga räntor för att sedan placeras på en annan marknad med högre räntor. Det är främst de japanska och amerikanska räntemarknaderna som har använts.Syftet med uppsatsen är att utreda om det går att få en positiv avkastning vid carry trade-affärer. Vi kommer även att belysa vilka risker som uppstår vid dessa investeringar, samt undersöka vad som kan göras för att minimera de risker som uppstår. Genom att studera andra länder med betydande räntedifferenser vill vi även utreda om denna strategi går att tillämpa på andra ränte- och valutamarknader än Japan och USA.För att uppfylla syftet har en kvantitativ studie genomförts baserad på sekundärdata, där vi skapat olika fiktiva affärer över tre tidsperioder för att kunna räkna ut och jämföra avkastningar.

I nära tio år har främst amerikanska placerare utnyttjat strategin carry trade för att skapa positiva avkastningar. Strategin innebär att lån tas på en marknad med låga räntor för att sedan placeras på en annan marknad med högre räntor. Det är främst de japanska och amerikanska räntemarknaderna som har använts.Syftet med uppsatsen är att utreda om det går att få en positiv avkastning vid carry trade-affärer. Vi kommer även att belysa vilka risker som uppstår vid dessa investeringar, samt undersöka vad som kan göras för att minimera de risker som uppstår. Genom att studera andra länder med betydande räntedifferenser vill vi även utreda om denna strategi går att tillämpa på andra ränte- och valutamarknader än Japan och USA.För att uppfylla syftet har en kvantitativ studie genomförts baserad på sekundärdata, där vi skapat olika fiktiva affärer över tre tidsperioder för att kunna räkna ut och jämföra avkastningar.

The purpose of this thesis is to assist the Swedish energy company NIBE Energy Systems in their studies of adaptive regulation applicable to electrical water heaters. Due to coming energy classifications of these appliances in the European Union, NIBE Energy Systems needs to use adaptive regulation, called Smart Control, to keep their products in the best possible energy class and remain competitive to the market. By using this Smart Control regulation a 2-3 % improve-ment of efficiency can be credited the system. This is a small number, but heavily needed, since the energy classes are based on the idea that the European Union is provided with electricity from coal condensate power resulting in a 40 % maximum efficiency. Furthermore, doing noth-ing will result in some water heaters not being approved to use on the market from 2015 due to low efficiency.

Syftet med detta examensarbete var att utveckla en utrustning för test av larmsystem uppbyggda med CareTech?s Smart Call-produkter. Testutrustningen ska kunna upptäcka problem i kommunikationen mellan dessa enheter. Den ska också kunna mäta matningsspänningen till enheterna under en viss tid och visa om spänningen har varit lägre eller högre än tillåtna värden..