970 resultados para University of Illinois (Urbana-Champaign campus). College of Commerce and Business Administration.


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Perhaps the most fundamental prediction of financial theory is that the expected returns on financial assets are determined by the amount of risk contained in their payoffs. Assets with a riskier payoff pattern should provide higher expected returns than assets that are otherwise similar but provide payoffs that contain less risk. Financial theory also predicts that not all types of risks should be compensated with higher expected returns. It is well-known that the asset-specific risk can be diversified away, whereas the systematic component of risk that affects all assets remains even in large portfolios. Thus, the asset-specific risk that the investor can easily get rid of by diversification should not lead to higher expected returns, and only the shared movement of individual asset returns – the sensitivity of these assets to a set of systematic risk factors – should matter for asset pricing. It is within this framework that this thesis is situated. The first essay proposes a new systematic risk factor, hypothesized to be correlated with changes in investor risk aversion, which manages to explain a large fraction of the return variation in the cross-section of stock returns. The second and third essays investigate the pricing of asset-specific risk, uncorrelated with commonly used risk factors, in the cross-section of stock returns. The three essays mentioned above use stock market data from the U.S. The fourth essay presents a new total return stock market index for the Finnish stock market beginning from the opening of the Helsinki Stock Exchange in 1912 and ending in 1969 when other total return indices become available. Because a total return stock market index for the period prior to 1970 has not been available before, academics and stock market participants have not known the historical return that stock market investors in Finland could have achieved on their investments. The new stock market index presented in essay 4 makes it possible, for the first time, to calculate the historical average return on the Finnish stock market and to conduct further studies that require long time-series of data.

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Inspired by the recent debate in the financial press, we set out to investigate if financial analysts warn their preferred customers of possible earnings forecast revisions. The issue is explored by monitoring investors’ trading behavior during the weeks prior to analyst earnings forecast revisions, using the unique official stock transactions data set from Finland. In summary, we do not find evidence of large investors systematically being warned of earnings forecast revisions. However, the results indicate that the very largest investors show trading behavior partly consistent with being informed of future earnings forecast revisions.

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Utilizing concurrent 5-minute returns, the intraday dynamics and inter-market dependencies in international equity markets were investigated. A strong intraday cyclical autocorrelation structure in the volatility process was observed to be caused by the diurnal pattern. A major rise in contemporaneous cross correlation among European stock markets was also noticed to follow the opening of the New York Stock Exchange. Furthermore, the results indicated that the returns for UK and Germany responded to each other’s innovations, both in terms of the first and second moment dependencies. In contrast to earlier research, the US stock market did not cause significant volatility spillover to the European markets.

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This study examines the intraday and weekend volatility on the German DAX. The intraday volatility is partitioned into smaller intervals and compared to a whole day’s volatility. The estimated intraday variance is U-shaped and the weekend variance is estimated to 19 % of a normal trading day. The patterns in the intraday and weekend volatility are used to develop an extension to the Black and Scholes formula to form a new time basis. Calendar or trading days are commonly used for measuring time in option pricing. The Continuous Time using Discrete Approximations model (CTDA) developed in this study uses a measure of time with smaller intervals, approaching continuous time. The model presented accounts for the lapse of time during trading only. Arbitrage pricing suggests that the option price equals the expected cost of hedging volatility during the option’s remaining life. In this model, time is allowed to lapse as volatility occurs on an intraday basis. The measure of time is modified in CTDA to correct for the non-constant volatility and to account for the patterns in volatility.

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Recent research documents that institutional or large investors act as antagonists to other investors by showing opposite behavior following disclosure of new information. Using an extremely comprehensive official transactions data set from Finland, we set out to explore the interrelation between investor size and behavior. More specifically, we test whether investor size is positively (negatively) correlated with investor reaction following positive (negative) news. We document robust evidence of that investor size affects investor behavior under new information, as larger investors on average react more positively (negatively) to good (bad) news than smaller investors. In the light of this study it seems increasingly feasible that several recent findings of heterogeneous investor behavior are functions of differences in overconfidence.

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The objective of this paper is to suggest a method that accounts for the impact of the volatility smile dynamics when performing scenario analysis for a portfolio consisting of vanilla options. As the volatility smile is documented to change at least with the level of implied at-the-money volatility, a suitable model is here included in the calculation process of the simulated market scenarios. By constructing simple portfolios of index options and comparing the ex ante risk exposure measured using different pricing methods to realized market values, ex post, the improvements of the incorporation of the model are monitored. The analyzed examples in the study generate results that statistically support that the most accurate scenarios are those calculated using the model accounting for the dynamics of the smile. Thus, we show that the differences emanating from the volatility smile are apparent and should be accounted for and that the methodology presented herein is one suitable alternative for doing so.

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This study investigates the relationship between fund attributes and performance. The focus is on funds available in the Swedish Premium Pension system (PPM-funds). The aim has been to investigate whether administration fees, manager tenure or past performance are of importance for pension savers when they pick their PPM-funds. The results indicate that high fees are a disadvantage to pension savers investing in bond funds but not to those investing in stock funds. Manager tenure has no relationship with performance. There is evidence of performance persistency in most of the investigated fund categories.

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The objective of this paper is to investigate the pricing accuracy under stochastic volatility where the volatility follows a square root process. The theoretical prices are compared with market price data (the German DAX index options market) by using two different techniques of parameter estimation, the method of moments and implicit estimation by inversion. Standard Black & Scholes pricing is used as a benchmark. The results indicate that the stochastic volatility model with parameters estimated by inversion using the available prices on the preceding day, is the most accurate pricing method of the three in this study and can be considered satisfactory. However, as the same model with parameters estimated using a rolling window (the method of moments) proved to be inferior to the benchmark, the importance of stable and correct estimation of the parameters is evident.

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This paper investigates the effect of income inequality on health status. A model of health status was specified in which the main variables were income level, income inequality, the level of savings and the level of education. The model was estimated using a panel data set for 44 countries covering six time periods. The results indicate that income inequality (measured by the Gini coefficient) has a significant effect on health status when we control for the levels of income, savings and education. The relationship is consistent regardless of the specification of health status and income. Thus, the study results provide some empirical support for the income inequality hypothesis.

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An der Schwedischen Wirtschaftsuniversität in Finnland wurde in einem mehrjährigen Projekt das gesamte deutsche Sprachcurriculum einer grundlegenden Revision unterzogen mit dem Ziel, unter Berücksichtigung der neuesten Forschungsergebnisse der angewandten Sprachwissenschaft ein zeitgemäßes und konsistentes Deutschcurriculum für Studierende der Wirtschaftswissenschaften zu schaffen. Durch das Projekt wurde für die deutsche Sprachausbildung ein deutliches Profil geschaffen, dessen Fokus auf fachkommunikativer Kompetenz und interkultureller Geschäftskommunikation liegt. Die von der Deutschabteilung entwickelten Lehr- und Lernmaterialien sind weitgehend auf der Basis eigener Forschungsergebnisse konzipiert und evaluiert worden und wurden gleichzeitig an den Gemeinsamen europäischen Referenzrahmens für Sprachen (CEFR) angepasst.

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In dem vorliegenden Aufsatz wird eine vergleichende Untersuchung eines Deutschkurses (Tyska V: Interkulturelle Themen) an der Schwedischen Wirtschaftsuniversität Helsinki (Hanken) präsentiert, der im Jahr 2002 vollständig virtuell und im Jahr 2003 mit virtuellen Lernphasen und Kontaktunterricht im Wechsel realisiert wurde, wobei sich das virtuelle Kursmaterial jeweils in der Lernumgebung WebCT befand. In der Untersuchung werden die Leistungen, die Kursevaluationen und die Arbeitsstrategien der Studierenden in den beiden Kurskonzepten analysiert und miteinander verglichen. In Bezug auf die Leistungen der Studierenden hat sich gezeigt, dass die guten Studierenden in beiden Kurskonzepten gleich gute Ergebnisse erzielen. Die Untersuchung zeigt jedoch, dass der Kontaktunterricht des teils-virtuellen Kurskonzeptes gerade für die schwächeren Studierenden eine wichtige Funktion erfüllt – die schwächeren Studierenden erzielen im Kurskonzept mit Kontaktunterricht deutlich bessere Ergebnisse als die schwächeren Studierenden im ganz virtuellen Kurskonzept. Ein Vergleich der Arbeitsstrategien zeigt, dass die schwächeren Studierenden im Unterschied zu den guten Studierenden deutliche Schwierigkeiten mit dem Zeit- und Materialmanagement haben. Für die Weiterentwicklung des Kurskonzeptes sind zum einen die technischen Rahmenbedingungen zu verbessern, und zum anderen muss der Kontaktunterricht neu überdacht werden, da die Einführung des Themas Arbeitsstrategien in der virtuellen Lernumgebung als eigenständiger Themenbereich dringend notwendig erscheint.

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Föreliggande arbete är resultatet av ett experiment med en materialinsamlingsmetod. Vad händer om man lägger ut en enkät med frågor om språk på webben och låter den som vill leverera svar? Vilka är det som svarar och vad har respondentgruppens sammansättning för betydelse för resultatet, dvs. kan man lita på det och i vilken utsträckning i så fall? Kan en kvantitativ vinst, då många svarar, täcka en eventuell kvalitativ förlust, då man inte har kontroll över vilka de många är? Man anar att svarsmönstret med nödvändighet måste vara brokigt och strävar att täcka in så mycket av det som möjligt och då är webbalternativet värt att pröva på. Tanken att ta reda på vad språkbrukarna själva har för syn på sitt språk, och vad de har för synpunkter bl.a. på språkvården, var egentligen inte ny, men den hade fått ny aktualitet i samband med arbetet med Svenska språknämndens handlingsprogram för svenskan i Finland (Tänk om ... 2003). Webbenkäten är uppgjord så att den matchar en liknande undersökning som genomfördes som en traditionell postenkät 30 år tidigare. Webbenkäten gav många svar och respondenterna representerade många olika språkmiljöer. Det fanns fler likheter än olikheter mellan svaren i webbenkäten 2002 och i enkätundersökningen 1972. En skillnad som dock märktes var att respondenterna i dag inte uppfattar svenskan i Finland som ålderdomlig, utan snarare karaktäriserar den som finskpåverkad. En påfallande likhet var känslan för det mest finlandssvenska, nämligen de specifikt finlandssvenska orden och uttrycken samt inslagen av finlandssvensk dialekt.

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Viimeaikainen sukupuolta ja organisaatiota käsittelevä tutkimus ja kirjallisuus on saanut paljon (toisinaan epäsuoria) vaikutteita feminismiä ympäröivistä keskusteluista. Lisäksi naisten aseman ja kokemuksien tunnistaminen organisaatioissa ja johtamisessa on vaikuttanut tutkimukseen. Erilaisten kansainvälisesti tutkittujen aiheiden kirjo on laaja: sukupuolisuhteet organisaatioiden ja johtoryhmien kulttuureissa ja kommunikaatiossa; sukupuolittunut työnjako; sukupuolittuneet hierarkiat, valta, auktoriteetti ja johtajuus organisaatioissa ja johtamisessa; sukupuolittuneet markkinat; sukupuolittuneet kuvat, symbolit ja mainokset; sukupuoli ja IT teknologia; seksuaalisuus, häirintä, kiusaaminen ja väkivalta organisaatioissa; työn ja kodin yhteensovittaminen; ja niin edelleen. Myös akateemiset organisaatiot sekä niiden sukupuolittuneet valtasuhteet ja johtaminen kaipaavat kipeästi huomiota. Useimpia mainituista alueista on tutkittu ainakin jonkin verran mutta paljon työtä on vielä myös jäljellä. Tämä kokoelma esittelee ajankohtaista suomalaista tutkimusta seuraavista teemoista: tasa-arvo organisaatioissa, naisjohtajuus, yrittäjyyden sukupuoli, verkostot, sukupuolen representaatio sekä sukupuoli ja uusi teknologia. Kokoelma on työryhmän yhdessä koostama joten se on ennen kaikkea yhteistyön tulos. Recent research and literature on the gendering of organisations has been strongly influenced, though sometimes indirectly, by debates in and around feminism, and on recognising women and women’s situations, experiences and voices in organisations and management. The range of topics and issues that have been studied internationally is vast: gender relations in organizational and management groups, cultures and communication; gender divisions of labour; gender divisions of hierarchy, power, authority and leadership in organizations and management; gendered markets; gender imagery, symbols and advertising; gender and information technology; sexuality, harassment, bullying and violence in organisations; home-work relations; and so on. There are also key issues of gender power relations in academic organizations and management themselves, which need urgent attention. Though most of these areas have been researched to some extent, much remains to be done. This collection brings together current Finnish research on: Equality in Organisations, Women in Management, Gender and Entrepreneurship, Networks, Representation of Gender, Gender and ICTs. The book has been put together by an editorial team and is thus first and foremost a collective effort.

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Kirjastoissa ja yliopistoissa tapahtuvaa tieteellisten töiden verkkokäyttöä koskevat tekijänoikeudelliset kysymykset ovat viimeaikoina aiheuttaneet päänvaivaa. Tietoverkot ja digitaalinen ympäristö muodostavatkin tekijänoikeuden kannalta erityisen soveltamisympäristön johon perehtyminen edellyttää tarkempaa tietämystä tiedon siirtämisestä, tietokannoista sekä ylipäätään tietoverkkoihin liittyvistä teknisistä toiminnoista. Koska sovelletut tekniset ratkaisut poikkeavat eri yhteyksissä toisistaan, pyrin kirjoituksessa yleisellä tasolla selvittämään niitä käyttäjien ja oikeudenhaltijoiden välisiä tekijän- ja sopimusoikeudellisia kysymyksiä, joita teosten käyttö tietoverkoissa aiheuttaa. Pyrkimyksenä on tuoda esiin ne tekijänoikeudellisesti merkitykselliset seikat, jotka verkkojulkaisuja arkistoitaessa, välitettäessä sekä linkkejä käytettäessä tulisi alkuperäisten tekijöiden, kustantajien ja verkkojulkaisijoiden (esimerkiksi kirjasto tai yliopisto) välisissä sopimuksissa ottaa huomioon. Kysymyksiä tarkastellaan erityisesti julkaisijan näkökulmasta. Esitys sisältää myös kustantajien lupakäytäntöä käsittelevän empiirisen tutkimuksen. Tutkimuksessa on tarkasteltu kuinka usein kustantajat ovat vuosien 2000 – 2003 välisenä aikana myöntäneet luvan julkaista väitöskirjan artikkeli osana väitöskirjaa Teknillisen korkeakoulun avoimella ei kaupallisella www-palvelimella. Koska linkeillä on verkkojulkaisutoiminnassa usein merkittävä rooli, mutta niiden tekijänoikeudellinen asema on epäselvä, kirjoituksen jälkimmäisessä osiossa perehdytään linkkien tekijänoikeudelliseen asemaan.

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The expansion of transnational corporations is a fundamental part of contemporary globalising processes. Through their activities, transnational corporations also have impacts on national and cultural gender relations, thus highlighting that gender relations are indeed amenable, to some extent, to social change. Accordingly, large transnational corporations have many effects and implications for gender relations in society, as well as having their own gender relations within them, characteristically in the form of men’s far greater presence in management than women’s. A key aspect in the functioning of transnational corporations is thus the way they organise and restructure gender relations within their own activities. The research presented here on gender divisions and gender policies in largest Finnish multinational and national corporations is part of a longer-term examination of the relations of gender relations in transnational corporations. It sets out the results of a survey of the largest 100 Finnish corporations with regard to the following main kinds of question: · general information on the corporation’s size, sector and economic activities; · the gender composition of their employment, middle management, top management, and board; · their gender equality plans and related policies. The human resources manager or their equivalent or delegate of 62 corporations responded to the survey. The general analysis of the data obtained from the survey is presented in this research report. Special attention is given to relations between the gender divisions and the gender policies of corporations. Interpretations of the data and more general theoretical implications are discussed in the report, with special attention to theoretical ways forward.