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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.
11

Constructing low cost core-satellite portfolios with multiple risk constraints: practical applications to Robo advising in South Africa using active, passive and smart-beta strategies

Smith, Jacques 24 February 2021 (has links)
Risk and tracking error budgeting was originally adopted by large institutional investors, including pension funds, plan sponsors, foundations, and endowments. More recently, risk and tracking error budgeting have gained popularity among financial advisors, multi-managers, fund of funds managers, high net worth individuals as well as retail investors. These techniques contribute to the portfolio optimisation process by limiting the extent to which a portfolio can deviate from its benchmark with regards to risk and tracking error. This is an ambitious paper that attempts to determine the optimal strategy to practically implement risk and tracking error budgeting as a portfolio optimisation technique in South Africa. This study attempts to bridge the gap between active, passive, and smart-beta investment management styles by introducing a low-cost portfolio construction technique, for core-satellite portfolio management, which contributes to the risk and tracking error budgeting process. Core-satellite portfolios are designed to expose the portfolio to a low-cost primary “core” consisting of passive and enhanced index funds, thus systematic risk “beta”, limiting the tracking error of the portfolio. The secondary “satellite” component is allocated to active and smart-beta managers to exploit expected excess return “alpha”. The primary aim of this research is to construct a rule-based product range of core-satellite portfolios called “replica portfolios”. The product range builds on the foundation of the Association for Savings & Investments South Africa (ASISA) framework. The study identifies three “target portfolios” from ASISA's framework, namely (1) High Risk: SA General Equity, (2) Medium Risk: SA Multi-Asset High Equity and (3) Low Risk: SA Multi-Asset Low Equity. Through this framework, active managers from each category are shortlisted using a Sharpe and Information Ratio filter. A secondary filtering technique, namely Returns Based Style Analysis (RBSA) is used to determine the style, R-squared and alpha-generating ability of active managers versus the passive asset classes and style indices they seek to replicate. Applying Euler's theorem for homogenous functions, we decompose the risk of the coresatellite portfolio into the risk contributed by each of its components. The primary mandate of the core-satellite portfolios in the product range is to allocate risk and tracking error efficiently across several investment management styles and asset classes in order to maximise returns while remaining within the specified risk parameters. iii The results highlighted that active managers, after fees, predominantly failed to outperform their benchmarks and passive building blocks, as identified through RBSA over the sample period (October 2009 – September 2019). However, only a small number of active managers generated superior risk-adjusted returns and were included in the core-satellite range of products. This study recommends to investors that they exploit the “hot-hands effect” by investing in specialised, benchmark agnostic active managers who consistently produce superior risk-adjusted returns. By blending active, passive and smart-beta strategies, investors are exposed to less total risk, less risk per holding and a lower tracking error. The three coresatellite portfolios developed in this study generated absolute and risk-adjusted returns that are more significant than their active and passive counterparts. Fee arbitrage was derived through the range of core-satellite products, resulting in tangible alpha over the sample period. The study encourages investors to use smart-beta strategies alongside active and passive funds since it improves Sharpe and Information ratios while enhancing the original portfolio's characteristics.
12

Essays on corporate social responsibility and socially responsible investment / Essais sur la responsabilité sociétale de l'entreprise et sur l'investissement socialement responsable

Lapointe, Vincent 09 December 2013 (has links)
Notre thèse traite des thématiques de la responsabilité sociétale des entreprises (RSE), de sa relation avec la performance économique et financière de l’entreprise, et de l’investissement socialement responsable (ISR). Ces thématiques ont récemment gagné en popularité, favorisées par un contexte de crise économique et environnementale. Notre thèse se compose de quatre principaux chapitres. Notre premier chapitre est une revue de la littérature académique sur la RSE et l’ISR. Nous proposons une revue interdisciplinaire de la littérature académique partagée entre l’économie et les sciences de gestion (éthique appliquée aux entreprises, stratégie et finance). Notre second chapitre est une analyse empirique de la relation entre RSE et performance financière de l’entreprise sous l’angle du coût du capital. Nous nous intéressons à l’impact de la publication d’une notation de la politique de RSE d’une entreprise sur la liquidité de ses titres et la taille de sa base d’actionnaires. Nos troisième et quatrième chapitres sont des analyses des propriétés de portefeuilles d’ISR construits à l’aide de nouvelles méthodes d’allocations. Ainsi nous analysons comment des stratégies d’allocations basées sur le risque modifient la performance des portefeuilles d’actifs financiers émis par des émetteurs ayant une politique de RSE, et réciproquement comment un univers d’investissement composé uniquement d’émetteurs ayant une politique de RSE modifie les propriétés de ces allocations alternatives. / Our thesis examines corporate social responsibility (CSR) and how it is linked to a firm’s economic and financial performance, as well as socially responsible investment (SRI). With the current environmental and economic uncertainty, these issues are attracting increasing interest. Our thesis is organized in four chapters. Chapter 1 is a literature review on CSR and SRI. We propose an interdisciplinary review of the academic literature in both economics and management sciences (ethics applied to business, strategy and finance). Chapter 2 is an empirical analysis of the relationship between CSR and a firm’s financial performance in terms of cost of capital. We look at the impact of publishing an evaluation of the firm’s involvement in CSR on the liquidity of its stocks and the size of its investor base. Chapter 3 and Chapter 4 are analyses of the characteristics of SRI portfolios built according to new allocation methodologies. We analyze how risk-based allocations impact the performance of the portfolios of financial products of issuers involved in CSR, and reciprocally, how a universe of investment composed of the financial products of issuers involved in CSR impacts the properties of these alternative allocations.
13

最佳風險分散投資組合在台灣股票市場之應用—以元大台灣卓越50基金為例 / Application of most diversified portfolio in Taiwan stock market- Yuanta/P-shares Taiwan Top 50 ETF

陳慶安, Chen, Ching An Unknown Date (has links)
本研究利用元大台灣50 ETF作為樣本資料,檢測2006年至2016年實證期間風險基礎指數和市值加權指數所分別建構的投資組合,其績效表現、風險表現、分散性表現的優劣性;其中Choueifaty, Froidure, and Reynier (2011) 所建構的最佳風險分散投資組合 (most diversified portfolio) 為近年來新起的風險基礎指數投資組合,我們將證實在獲得良好的投資組合分散性同時,如同其他的風險基礎指數投資組合的目標,同時也能獲得超越以追蹤市值加權指數為標的的投資組合績效。 本研究以夏普比率、信息比率、阿爾法作為衡量績效的指標;以標準差、貝他作為風險衡量的指摽;另以Choueifaty and Coignard (2008) 提出的分散性比率作為分散性衡量的指標。實證結果顯示,在整體實證期間,最佳風險分散投資組合在績效、風險、分散性的指標上皆有超越市值加權指數投資組合的能力,再以年為單位的個別期間,其績效衡量上大致優於市值加權指數投資組合,風險和分散性衡量上則優於市值加權指數投資組合的表現,但論以其整體表現,並非為本研究所提出的風險基礎指數投資組合中最佳者,因此投資人在選擇該類投資組合策略時,建議從該投資組合過去表現中判斷,選擇符合自己投資習慣者為之。 / This article examines the performance, risks and diversification of different types of portfolio strategies such as risk-based indexes and cap-weighted index during 2006- 2016. We introduce the recent most diversified portfolio (MDP), which was proposed by Choueifaty, Froidure, and Reynier (2011) and find the result that like the goal of other risk-based portfolios, which is to improve the risk-return profile of cap-weighted portfolio, MDP surpasses overall performance, risks and diversification compared to cap-weighted portfolio while achieving diversification. We use Sharpe ratio, information ratio and alpha as the performance indicators, use standard deviation, beta as the risk indicators, and adopt diversification ratio (DR), which was proposed by Choueifaty and Coignard (2008), as the diversification indicator in our analysis. The results of this study show that MDP surpasses overall performance, risks and diversification compared to cap-weighted portfolio in the full empirical period. In addition, MDP is generally superior to cap-weighted portfolios in terms of performance in many single years of the whole period, and completely beat cap-weighted portfolios in terms of risks and diversification in every single year of the whole period. Although the ability of exceeding cap-weighted portfolio, MDP do not win first place of mentioned risk-based portfolios in our research. As a result, we suggest investors choose their portfolio strategies refer to its past performance, risks and diversification, and select the best according to their investment preference.

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