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  • 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.
61

Sustainability Filtration and Optimization: A Stepwise Integration Approach / Hållbarhetsfiltering och Optimering: En Stegvis Integrationsmetod

Jalaei, Soroosh January 2023 (has links)
This thesis explores the integration of sustainability into Modern Portfolio Theory (MPT) optimization by introducing stepwise filtration and optimization. This study acknowledges the growing importance of sustainability in investment strategies and modifies the traditional MPT framework to include environmental, social, and governance (ESG) factors. A systematic filtration process is conducted where each asset undergoes a step-by-step filtration based on different ESG criteria. For each filtration step, portfolio optimization is performed to find the most efficient portfolios under the filtered criteria. The effect of each filtration on portfolio risk and return profile provides insights into the trade-offs between financial performance and sustainability impacts. The findings indicate that investors considering the ethical aspects of ESG can achieve these goals without significantly affecting the portfolio risk and return. However, investors incorporating all aspects of ESG will experience a higher drop in the efficient frontier. Moreover, while investigating an additional index, including more companies, investors can attain a better portfolio profile while incorporating all aspects of ESG. A central ambition of this study has been enlighten investors regarding the different aspects of ESG and the trade-offs of integrating sustainability into investment practices. Thus, this study seeks to refine the investor decision-making process and encourage investors to make more informed sustainable decisions. / Detta examensarbete undersöker hur hållbarhet kan integreras i Modern Portfolio Theory (MPT) genom att introducera en stegvis filtrering och optimering. Denna studie framhäver den växande betydelsen av hållbarhet inom investeringsstrategier och modifierar det tradionella ramverket för MPT för att inkludera miljön, socialt ansvar och bolagsstyrning (ESG). En systematisk filtreringsprocess genomförs där varje tillgång genomför en iterativ filtrering baserad på ESG-kriterier. För varje filtreringssteg utförs portföljdoptimering för att hitta de mest effektiva portföljerna under den filtrerade kriterierna. Denna process ger insikt i avvägningarna mellan finansiell avkastning och hållbarhetseffekter. Resultaten indikerar att investerare som beaktar de etiska aspekter kan uppnå dessa mål utan att nämnvärt påverka portföljens risk och avkastningsprofil. Dock, investerare som beaktar samtliga aspekter av ESG kommer att uppleva en större minskning av den effektiva fronten. Dessutom kan investerare, genom utforskning av ett kompletterande index som innefattar ett större urval av företag, uppnå en förbättrad portföljprofiler samtidigt som alla ESG-aspekter beaktas. En central ambition för denna studie har varit att upplysa investerare om de olika aspekterna av ESG och avvägningarna med att integrera hållbarhet i investeringspraxis. Således, strävar denna studie efter att förbättra investerarnas beslutprocess och uppmuntra investerare till att fatta med informerade hållbara beslut.
62

Project portfolio management : a model for improved decision making

Enoch, Clive Nathanael 03 April 2014 (has links)
The recent global financial crisis, regulatory and compliance requirements placed on organisations, and the need for scientific research in the project portfolio management discipline were factors that motivated this research. The interest and contribution to the body of knowledge in project portfolio management has been growing significantly in recent years, however, there still appears to be a misalignment between literature and practice. A particular area of concern is the decision-making, during the management of the portfolio, regarding which projects to accelerate, suspend, or terminate. A lack of determining the individual and cumulative contribution of projects to strategic objectives leads to poorly informed decisions that negate the positive effect that project portfolio management could have in an organisation. The focus of this research is, therefore, aimed at providing a mechanism to determine the individual and cumulative contribution of projects to strategic objectives so that the right decisions can be made regarding those projects. This thesis begins with providing a context for project portfolio management by confirming a definition and providing a theoretical background through related theories. An investigation into the practice of project portfolio management then provides insight into the alignment between literature and practice and confirms the problem that needed to be addressed. A conceptual model provides a solution to the problem of determining the individual and cumulative contribution of projects to strategic objectives. The researcher illustrates how the model can be extended before verifying and validating the conceptual model. Having the ability to determine the contributions of projects to strategic objectives affords decision makers the opportunity to conduct what-if scenarios, enabled through the use of dashboards as a visualization technique, in order to test the impact of their decisions before committing them. This ensures that the right decisions regarding the project portfolio are made and that the maximum benefit regarding the strategic objectives is achieved. This research provides the mechanism to enable better-informed decision- making regarding the project portfolio. / Computing / D. Phil. (Computer science)
63

Portfolio optimisation using the Johannesburg Securities Exchange tradable indices : an application of the Markowitz's mean-variance framework

Huni, Sally 08 1900 (has links)
The aim of this study was to assess the feasibility of constructing optimal portfolios using the Johannesburg Securities Exchange tradable sector indices. Three indices were employed, namely Financials, Industrials and Resources and were benchmarked against the JSE All Share Index for the period January 2007 to December 2017. The period was split into three, namely before the 2007-2009 global financial crises, during the global financial crises and after the global financial crises. The Markowitz’s mean-variance optimisation framework was employed for the construction of global mean variance portfolios. The results of this study showed that it was feasible to construct mean-variance efficient portfolios using tradable sector indices from the Johannesburg Securities Exchange. It was also established that, on the other hand, global mean variance portfolios constructed in this study, outperformed the benchmark index in a bullish market in terms of the risk-return combinations. On the other hand, in bear markets, the global mean variance portfolios were observed to perform better than the benchmark index in terms of risk. Further, the results of the study showed that portfolios constructed from the three tradable indices yielded diversification benefits despite their positive correlation with each other. The results of the study corroborate the findings by other scholars that the mean-variance optimisation framework is effective in the construction of optimal portfolios using the Johannesburg Securities Exchange. The study also demonstrated that Markowitz’s mean-variance framework could be applied by investors faced with a plethora of investment choices to construct efficient portfolios utilising the Johannesburg Securities Exchange tradable sector indices to achieve returns commensurate with their risk preferences. / Business Management / M. Com. (Business Management)
64

Análise dos investimentos em ações no Brasil (1986-2005) / Investment analysis of stock returns in Brazil (1986 -2005)

Pereira, Paulo de Sá 22 May 2006 (has links)
Made available in DSpace on 2016-04-25T16:44:47Z (GMT). No. of bitstreams: 1 Dissertacao Paulo de Sa Pereira.pdf: 641021 bytes, checksum: 5b48d843ebfe14352bac73bfbea9cc00 (MD5) Previous issue date: 2006-05-22 / The objective of this dissertation is a comparative analysis of investing in stock in Brazil compared to investing in government bonds and other reserve securities type of assets, aiming at deciding whether the incurred risk in stock has been rewarded by an increased return compared to investing in more conservative assets. The covered period of analysis is from March 1986 to December 2005. The analysis was made based on Modern Portfolio Theory and the studies were carried out on secondary data on the main financial assets and indicators, namely: the Bovespa index, the Selic rate, Gold, Dollar, Savings Accounts and one inflation indicator, the General Price Index IGP. In order to enhance the comprehension of the subject, throughout the dissertation, the history of the Stock Exchange, the economic environment of the respective economic plans, analysis of the result and a conclusion has been included. Various performed studies points to the fact that investing in stocks, represented by the Bovespa index, and when compared to fixed interest in this case, government securities remunerated according to the Selic had a lower return in spite of the greater risk / O objetivo deste trabalho é a análise dos investimentos em ações no Brasil, comparativamente a investimentos em títulos federais e outros ativos típicos de reserva de valor, procurando estabelecer se o adicional de risco incorrido em ações foi recompensado pelo aumento do retorno quando comparado a ativos mais conservadores. O período de análise está compreendido entre março de 1986 e dezembro de 2005. A fundamentação teórica foi conduzida com base na Moderna Teoria de Portfólios e os estudos foram desenvolvidos com base em dados secundários sobre os principais ativos financeiros e indicadores, a saber: Índice Bovespa, taxa Selic, Ouro, Dólar, Caderneta de Poupança e um indicador de inflação, o Índice Geral de Preços IGP. Para melhor compreensão desse tema, no decorrer desta dissertação, também, foram abordados a história das Bolsas de Valores, o ambiente econômico vigente nos diversos planos econômicos, a análise dos resultados e apresentada a conclusão. Os diversos estudos realizados indicaram que o investimento em ações, representado pelo Índice Bovespa, quando comparado ao de renda fixa no caso, o título público remunerado pela taxa Selic apesar de maior risco, apresentou um retorno inferior ao longo do período pesquisado
65

P/E-effekten : En utvärdering av en portföljvalsstrategi på Stockholmsbörsen mellan 2004 och 2012

Alenius, Peter, Hallgren, Edward January 2013 (has links)
One could argue that the most discussed topic in finance is whether or not it is possible to “beat the market”. Even though many people claim to do this, there is little evidence to support the idea that one can consistently beat the market over a long period of time. There are indeed several examples of investors who have managed to outperform the market consistently for a long time, but the efforts of these individuals or institutions could by many be considered to be pure luck. One of the many strategies that have been evaluated by several researchers and is said to generate a risk adjusted return greater than that of the market, is one based on the P/E-effect. This strategy is based on the financial ratio P/E – price divided by earnings – and used by constructing portfolios consisting of stocks with low P/E ratios. Several studies have confirmed the existence of the P/E-effect on various stock markets around the world and over different time periods. On the Swedish market, however, few studies have generated the same results. Most of these studies can be considered to be insufficient with regards to sample sizes and methods, spawning a need for more extensive studies. We have examined the P/E strategy on the Swedish Stock Exchange (SSE) between 2004 and 2012. The sample included 358 companies (excluding financial companies) with available necessary data. The stocks were divided into five portfolios based on their yearly P/E ratios (low to high), upon which the monthly returns of the individual stocks were calculated using a logarithmic formula. The returns were also risk adjusted using the Capital Asset Pricing Model (CAPM), followed by a regression analysis to see if possible abnormal returns could be considered to be statistically significant for the examined time period. The results of our study indicate that the P/E effect is not present on the Swedish Stock Exchange during the examined time period, and we therefore conclude that it was not possible to utilize a strategy based on the P/E effect between 2004 and 2012 in order to achieve an abnormal return. The results can be used to argue that the Swedish stock market is more efficient than for example the U.S. stock market where the P/E effect has been found to exist.
66

Beating the Swedish Market : A dynamic approach to Value Investing using Modern Portfolio Theory

Karlsson, Viktor, Nygren, Emil January 2012 (has links)
Previous research has confirmed the existence of a value premium in a wide array of markets and using this value stock anomaly has yielded superior performance. This thesis investigates if one could take advantage of the existence of a value premium to deploy a dynamic investment strategy on the Swedish stock market (OMXS30) with focus on minimizing risk to achieve higher risk adjusted performance than the stock market index. The investment strategy implemented use Market-to-Book-Value to screen for both entry and exit signals and Modern Portfolio Theory, using the minimum-variance portfolio with short-selling constraints, to allocate assets within the portfolio. The investment strategy is evaluated using the Modigliani-Modigliani Risk Adjusted Performance measure. Conclusions from the thesis are that the strategy does outperform the Swedish stock market index, both in terms of nominal return and risk-adjusted performance. The suboptimal behaviour of investors where they overreact  to signals and unconsciously rely on heuristics is used to explain why this is possible. Market-to-Book-Value, using the first quartile as entry signal and third quartile as exit signal, is considered to be a successful key ratio to screen for value stocks.
67

Gli investimenti non finanziari nel private banking: scelte strategiche, aspetti tecnico-valutativi e modalità di customer relationship management. / Goods as Investment in Private Banking: Strategy View, Valuation Process and Customer Relationship Management

LIPPI, ANDREA 02 April 2007 (has links)
L'obiettivo della ricerca è evidenziare se l'investimento in beni non finanziari è preso in considerazione dalle private banks operanti in Italia nella costruzione dei portafogli dei loro clienti facoltosi, se nel processo di ottimizzazione siano seguite le logiche della modern portfolio theory e quali modalità vengono adottate nella fase di presentazione delle performance. si procede quindi ad esaminare gli investimenti in oro, in arte, in diamanti, in vino e in immobili per verificarne gli impatti sulla rischiosità e sulle performance di portafoglio. / The goal of this thesis is to verify if private banks that operate in Italy use goods as investment for diversifying HNW or U-HNW individuals portfolio, if they take in consideration the modern portfolio theory for asset allocation and how performances are presented to investors. So it analyses the investment as gold, real estate, art, diamond and wine to achieve the impact of them on portfolio risk and performance.
68

Análise de portfólio: uma perspectiva bayesiana

Tito, Edison Americo Huarsaya 03 June 2016 (has links)
Submitted by EDISON AMERICO HUARSAYA TITO (edison.tito@gmail.com) on 2016-06-23T14:02:55Z No. of bitstreams: 1 EdisonMscFGV(20160619).pdf: 2366030 bytes, checksum: 231be2cde1e7f8e01331fddff3f227a1 (MD5) / Approved for entry into archive by GILSON ROCHA MIRANDA (gilson.miranda@fgv.br) on 2016-06-23T14:36:07Z (GMT) No. of bitstreams: 1 EdisonMscFGV(20160619).pdf: 2366030 bytes, checksum: 231be2cde1e7f8e01331fddff3f227a1 (MD5) / Approved for entry into archive by GILSON ROCHA MIRANDA (gilson.miranda@fgv.br) on 2016-06-24T12:51:11Z (GMT) No. of bitstreams: 1 EdisonMscFGV(20160619).pdf: 2366030 bytes, checksum: 231be2cde1e7f8e01331fddff3f227a1 (MD5) / Made available in DSpace on 2016-06-29T12:06:48Z (GMT). No. of bitstreams: 1 EdisonMscFGV(20160619).pdf: 2366030 bytes, checksum: 231be2cde1e7f8e01331fddff3f227a1 (MD5) Previous issue date: 2016-06-03 / This work has the objective to address the problem of asset allocation (portfolio analysis) under a Bayesian perspective. For this it was necessary to review all the theoretical analysis of the classical mean-variance model and following identify their deficiencies that compromise its effectiveness in real cases. Interestingly, its biggest deficiency this not related to the model itself, but by its input data in particular the expected return calculated on historical data. To overcome this deficiency the Bayesian approach (Black-Litterman model) treat the expected return as a random variable and after that builds a priori distribution (based on the CAPM model) and a likelihood distribution (based on market investor’s views) to finally apply Bayes theorem resulting in the posterior distribution. The expected value of the return of this posteriori distribution is to replace the estimated expected return calculated on historical data. The results showed that the Bayesian model presents conservative and intuitive results in relation to the classical model of mean-variance. / Este trabalho tem com objetivo abordar o problema de alocação de ativos (análise de portfólio) sob uma ótica Bayesiana. Para isto foi necessário revisar toda a análise teórica do modelo clássico de média-variância e na sequencia identificar suas deficiências que comprometem sua eficácia em casos reais. Curiosamente, sua maior deficiência não esta relacionado com o próprio modelo e sim pelos seus dados de entrada em especial ao retorno esperado calculado com dados históricos. Para superar esta deficiência a abordagem Bayesiana (modelo de Black-Litterman) trata o retorno esperado como uma variável aleatória e na sequência constrói uma distribuição a priori (baseado no modelo de CAPM) e uma distribuição de verossimilhança (baseado na visão de mercado sob a ótica do investidor) para finalmente aplicar o teorema de Bayes tendo como resultado a distribuição a posteriori. O novo valor esperado do retorno, que emerge da distribuição a posteriori, é que substituirá a estimativa anterior do retorno esperado calculado com dados históricos. Os resultados obtidos mostraram que o modelo Bayesiano apresenta resultados conservadores e intuitivos em relação ao modelo clássico de média-variância.
69

Operações de day trading na BM&F BOVESPA: avaliação de uma técnica de otimização de resultados

Pintan, Marcio Alvarez 25 May 2018 (has links)
Submitted by Marcio Pintan (mpintan@gmail.com) on 2018-06-25T18:13:19Z No. of bitstreams: 1 financas-pintan-dissertação versao final.pdf: 1855884 bytes, checksum: 0ac7f69afc81d4cea8446f01d309fd99 (MD5) / Approved for entry into archive by Mayara Costa de Sousa (mayara.sousa@fgv.br) on 2018-08-13T16:18:19Z (GMT) No. of bitstreams: 1 financas-pintan-dissertação versao final.pdf: 1855884 bytes, checksum: 0ac7f69afc81d4cea8446f01d309fd99 (MD5) / Approved for entry into archive by Suzane Guimarães (suzane.guimaraes@fgv.br) on 2018-08-13T16:25:32Z (GMT) No. of bitstreams: 1 financas-pintan-dissertação versao final.pdf: 1855884 bytes, checksum: 0ac7f69afc81d4cea8446f01d309fd99 (MD5) / Made available in DSpace on 2018-08-13T16:25:32Z (GMT). No. of bitstreams: 1 financas-pintan-dissertação versao final.pdf: 1855884 bytes, checksum: 0ac7f69afc81d4cea8446f01d309fd99 (MD5) Previous issue date: 2018-05-25 / Esta dissertação trata das operações realizadas na BM&F BOVESPA chamadas comumente de 'Day Trading', ou seja, operações cuja compra (ou venda) e a liquidação são realizadas no mesmo dia. Tal questão é relevante, principalmente para o pequeno investidor, por possibilitar a otimização do resultado da sua carteira de investimento ao longo do tempo. O objetivo de pesquisa deste trabalho é apresentar e testar algumas técnicas utilizadas pelos operadores do mercado financeiro na modalidade 'Day Trading'. Em conjunto com a verificação das teorias de análise gráfica, o trabalho pretende conciliar tais técnicas preditivas com teorias de gestão de risco e de gestão de portfólio, nesse caso mais precisamente a teoria moderna de portfólio de Markowitz, de forma a testar a eficiência da combinação entre essas teorias no mercado de ações brasileiro, e se existe a possibilidade de otimização dos resultados que um investidor pode alcançar ao longo do tempo. Para atingir este objetivo foi realizada uma pesquisa quantitativa utilizando técnicas de análise gráfica baseadas em teorias amplamente conhecidas no mercado de capitais, como os Princípios de Ondas de Elliott e a Teoria de Dow. A partir dos indicadores de sucesso obtidos por essas técnicas preditivas (através de 'backtests'), o presente trabalho testa a efetividade das questões relativas a eficiência de mercado apresentadas nas Hipótese de Mercados Eficientes de Fama (1970). As principais conclusões desta dissertação sugerem que uma estratégia passiva, de compra e manutenção do Índice Bovespa, domina respectivamente estratégias baseadas na Teoria de Markowitz e estratégias ativas de Day Trading baseadas em análise técnica. Os resultados trazem uma grande contribuição para o pequeno investidor através de uma maior compreensão sobre possibilidades que as operações de curto prazo podem trazer para ao seu portfólio de investimentos e confirma a visão de que o mercado de ações brasileiro é eficiente em sua forma fraca. / This thesis deals with operations carried out on BM&F BOVESPA commonly called 'Day Trading', which are operations whose purchase (or sale) and settlement are carried out on the same day. This issue is relevant, especially for the small investor, because it allows the optimization of the result of their investment portfolio over time. The objective of this research is to present and test some techniques used by financial market traders in the 'Day Trading' modality. In conjunction with the verification of theories of technical analysis, the paper aims to reconcile such predictive techniques with theories of risk management and portfolio management, in this case more precisely the Modern Portfolio Theory of Markowitz, in order to test the efficiency of the combination between these theories in the Brazilian stock market, and whether there is a possibility of optimizing the results that an investor can achieve over time. To achieve this goal a quantitative research is performed using graphical analysis techniques based on theories widely known in the capital market, such as the Elliott Wave Principle and the Dow Theory. From the indicators of success obtained by these predictive techniques (through backtests), the present research explores aspects of market efficiency presented in the Efficient Market Hypothesis of Fama (1970). The main conclusions of this dissertation suggest that a passive buy and hold strategy of the Bovespa Index dominates respectively strategies based on Markowitz Theory and active day trading strategies based on technical analysis. The results make a contribution to the small investor through a better understanding of the possibilities that short-term operations can bring to their investment portfolios and confirms the view that the Brazilian stock market is efficient in its weak form.
70

Project portfolio management : a model for improved decision making

Enoch, Clive N. 03 April 2014 (has links)
The recent global financial crisis, regulatory and compliance requirements placed on organisations, and the need for scientific research in the project portfolio management discipline were factors that motivated this research. The interest and contribution to the body of knowledge in project portfolio management has been growing significantly in recent years, however, there still appears to be a misalignment between literature and practice. A particular area of concern is the decision-making, during the management of the portfolio, regarding which projects to accelerate, suspend, or terminate. A lack of determining the individual and cumulative contribution of projects to strategic objectives leads to poorly informed decisions that negate the positive effect that project portfolio management could have in an organisation. The focus of this research is, therefore, aimed at providing a mechanism to determine the individual and cumulative contribution of projects to strategic objectives so that the right decisions can be made regarding those projects. This thesis begins with providing a context for project portfolio management by confirming a definition and providing a theoretical background through related theories. An investigation into the practice of project portfolio management then provides insight into the alignment between literature and practice and confirms the problem that needed to be addressed. A conceptual model provides a solution to the problem of determining the individual and cumulative contribution of projects to strategic objectives. The researcher illustrates how the model can be extended before verifying and validating the conceptual model. Having the ability to determine the contributions of projects to strategic objectives affords decision makers the opportunity to conduct what-if scenarios, enabled through the use of dashboards as a visualization technique, in order to test the impact of their decisions before committing them. This ensures that the right decisions regarding the project portfolio are made and that the maximum benefit regarding the strategic objectives is achieved. This research provides the mechanism to enable better-informed decision- making regarding the project portfolio. / Computing / D. Phil. (Computer science)

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