Thesis (doctoral)--Universität, Freiburg (Breisgau), 2003. / Includes bibliographical references (p. [183]-200).

Actively managed mutual funds underperform the index and investors are recommended to invest in index funds since they give higher returns (Dagens Industri Debatt, 2010). In this thesis it is investigated if partly indexated portfolios with randomly selected stocks beat the benchmark index and thus are a valid option of portfolio construction for the individual investor. For this purpose sixteen portfolios are constructed partly by an index and partly by randomly selected stocks from the Swedish stock market in the time period of 2007.01.01 to 2010.01.01. Risk and return measures are used in order to analyse if the portfolios beat the benchmark index. The results are also compared to an index mutual fund in order to validate the results further. The results suggest that partly indexated portfolios with randomly selected stocks are able to outperform both the benchmark index and the comparing index mutual fund. When dividends were included in the portfolios all of the sixteen portfolios had beaten the benchmark index. The two stock portfolio is a valid alternative when investing in mutual funds since it has superior returns with only marginally higher risk than the benchmark index.

The European Language Portfolio (ELP) is a new tool in the foreign language learning process. It is a document in which those who are learning or have learned a language can record the progress and outcomes in their language learning experiences. Learning strategies cannot be separated from use of the ELP as they are special thoughts or behaviours that individuals use to help them comprehend and learn new information. The present research paper attempts at analysing the European Language Portfolio use in terms of the application of learning strategies and we do that by presenting the ELP as an instrument to make lifelong language learning easier and more meaningful, also by discussing the learning strategies and by classifying them into categories as compared to communication strategies. The purpose of the present study was to identify which language strategies are employed in speaking and reading activities while using the ELP. The major method chosen for the study was content analysis. The research paper mainly focuses on the ELP as such, on particular language learning strategies and on the selectively chosen strategies used while applying the European Language Portfolio. The European Language Portfolio can be defined in several ways. It is a companion to learning, giving learners the means to assess their own language knowledge, to reflect on their language learning and intercultural experiences and to plan their future learning experiences. It also aims at... [to full text] / „ Europos kalbų aplankas“- tai kalbinių kompetencijų vertinimo ir įsivertinimo priemonė, kurios tikslas - padėti besimokančiajam įsivertinti kalbos mokėjimą ir prilyginti jį Europoje pripažintiems lygiams. „Europos kalbų aplankas“ atitinka Europos Tarybos kalbų politiką ir prisededa prie daugiakalbystės plėtros. Europos Tarybos kalbų politikos nuostatos, kuriomis grindžiamas „Kalbų aplanko“ rengimas ir diegimas, yra šios: • geresnis Europos piliečių savitarpio supratimas; • pagarba kultūrų ir gyvenimo būdo įvairovei; • asmens daugiakalbystės ugdymas visą gyvenimą; • gebėjimo savarankiškai mokytis kalbos ugdymas. Pagrindinis aplanko tikslas - skatinti mokytis kalbų parodant besimokančiajam daugiau galimybių pačiam plėtoti kalbinius gebėjimus įvairiais lygiais. Šiame magistro darbe siekėme ištyrinėti kokios mokymosi strategijos yra naudojamos „Europos kalbų aplanke“ ugdant kalbėjimo ir skaitymo gebėjimus. Pagrindinis metodas, naudojamas šiame darbe, yra turinio analizavimas. Darbas susideda iš keturių dalių bei jų poskyrių. Pirmoje darbo dalyje aptariami mokytojo ir besimokančiojo vaidmenys, taip pat mokytojo vaidmenys mokant kalbos strategijų. Antroje dalyje pristatomos „Europos kalbų aplanko“ funkcijos ir jo sudedamosios dalys. Trečioje dalyje aptariamos kalbos mokymosi strategijos, jų pagrindiniai apibrėžimai ir bruožai, bei strategijų klasifikacija. Ketvirtoje – praktinėje darbo dalyje analizuojamos „Europos kalbų aplanko“ skaitymo ir kalbėjimo užduotys. Analizės tikslas-... [toliau žr. visą tekstą]

In this paper, I evaluate the out-of-sample performance of the portfolio optimizer relative to the naïve and market strategy on the Swedish stock market from January 1998 to December 2012. Recent studies suggest that simpler strategies, such as the naïve strategy, outperforms optimized strategies and that they should be implemented in the absence of better estimation models. Of the 12 strategies I evaluate, 11 of them significantly outperform both benchmark strategies in terms of Sharpe ratio. I find that the no-short-sales constrained minimum-variance strategy is preferred over the mean-variance strategy, and that the historical sample estimator creates better minimum-variance portfolios than the single-factor model and the three-factor model. My results suggest that there are considerable gains to optimization in terms of risk reduction and return in the context of portfolio selection.

Wir berichten über die Integration von E-Portfolio-Funktionalität in das Lern- und Kooperationssystem ILIAS OpenSource. Das Projekt wurde aus dem methodisch-didaktischem Bedarf der Hochschule Bremen heraus initiiert. Portfolio als Methode und Instrument soll u.a. genutzt werden, um Kompetenzen an Hochschulübergängen sichtbar zu machen – zum einen auf dem Weg in die Hochschule durch die Anerkennung informell und nicht formal erworbener Kompetenzen, zum anderen auf dem Weg in das Berufsleben durch die Präsentation von Kompetenzprofilen. Der Beitrag beleuchtet Entscheidungen auf dem Weg zu einer angemessenen webbasierten und kooperativen Software-Infrastruktur, die auf unterschiedliche Typen von Portfolio-Arbeitsprozessen zugeschnitten ist, aber nicht auf sie beschränkt bleiben muss.

In den vergangenen zwei Semestern wurden an der Hochschule für Technik und Wirtschaft Berlin drei Veranstaltungen mit einem Portfoliokonzept begleitet. Zur Umsetzung der studentischen Arbeiten wurde neben der Anwendung Mahara als vergleichende Anwendung eine Gruppe im sozialen Netzwerk Facebook eingesetzt. Dieser Artikel stellt das didaktische Konzept zur Begleitung der studentischen Arbeiten vor und diskutiert die beiden Anwendungen im Hinblick auf praktikable Einsatzszenarien sowie die Akzeptanz innerhalb der begleiteten Veranstaltungen.

Thesis (doctoral)--University of Passau, 2007. / Includes bibliographical references (p. [127]-133).

University, Diss.--St. Gallen, 2000.

Diss. Nr. 2944 Wirtschaftswiss. St. Gallen, 2004. / Literaturverz.

In this diploma thesis, selected techniques for construction of optimal portfo- lios are presented. Risk measures and other criteria (Markowitz approach, Value at risk, Conditional value at risk, Mean absolute deviation, Spectral risk measure and Kelly criterion) are defined in the first part. We derived analytical solution for some cases of optimization problems, in some other cases there exists numeri- cal solution only however. Advantages and disadvantages, theoretical properties and practical aspects of software implementation in Wolfram Mathematica are also mentioned. Simulation methods suitable for portfolio optimization are brie- fly presented with their motivation in the second part. Multivariate distributions: normal, t-distribution and skewed t-distribution are presented in the third part with connection to optimization of portfolio with assumption of multivariate dis- tribution of financial losses. Optimization methods are illustrated on real data in the fourth part of this thesis. Analytical methods are compared with numerical ones. 1