...the data. For example, if the participants throw a coin to decide if they will answer a question or not, the missing item is MCAR. The independence of $M_{Z}$ from the missing values $Z$ cannot be tested because we do not have access to the values which people refused to give answers. The second type of Missing data is the mechanism Missing at Random (MAR). We assume that the sets $X$ and $Z$ and the indicator function $M_{Z}$ are the same as before. The MAR can be defined as $$\mathbb{P}(M_{Z}=1|X,Z)=\mathbb{P}(M_{Z}=1|X).$$ To be more specific, the data are MAR if the missing values are related to the variables $X$ which have been recorded but it is independent from the variable which is missing from the data....
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...MxN strategy Here, we specifically use a strategy that selects stocks on the basis of returns over the past M months (i.e. formation period) and holds them for N months (holding period). This is called as the M x N strategy. At the beginning of each month t, the candidate stocks are ranked in descending order on the basis of their returns in the past M months. The top decile portfolio is called the “winners” portfolio and the bottom decile is called the “losers” portfolio. This strategy involves, simultaneously buying the winner portfolio and selling the loser portfolio and then holding this position for N months (total number of months). The strategies we have considered in our project involve selecting stocks based on their 3-month and 6month returns (for formation period). We then consider holding periods of 3, 6 and 12 months for stocks selected on the basis of returns in 3-month formation period--thus generating trading strategies: 3x3, 3x6 and 3x12. On the basis of returns in 6-month formation period, however, we consider a holding period of only 12 months, thus generating the 6x12 trading strategy. However in the project report analysis of only 6x12 strategy is laid down due to non-completion of other strategies. Methodology In this paper, we explain the methodology for 6 x 12 strategy for illustration purpose, although similar methodology has been used in other strategies as well. The analysis is performed using first six months data for portfolio formation...
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...Active Portfolio Management: Country vs. Sector Characteristics Executive Summary This project sets out to invest between 7bn and 9bn Euros for a large pension fund in European equities, chosen from the MSCI Europe Index, which also serves as the benchmark to measure performance against. Two portfolios need to be created, one to reflect asset allocation focussed on countries and the other on sectors, with the number of assets in each portfolio being no more than 150. Both portfolios must be actively managed, having at least an active risk of 3% when compared to the benchmark. To achieve this, I followed a three step top-down approach for our investment decision process. Firstly, I started with an analysis of the macroeconomic environment in Europe, followed by forming opinions on the relative strengths and weaknesses of the constituent countries and sectors, using the macro-analysis to determine which are most likely to perform well, given the long-run trends identified. Finally, I invested in all mid-cap companies within the selected countries and sectors, based on our judgement that middle sized firms are poised to prosper the most in this difficult economic environment, which I predict to remain tough for the foreseeable future. After finalising the initial portfolios in this way, I used BarraOne to optimise them. Following optimisation, I compared the risk profile of each portfolio to the benchmark. Our findings show that an actively managed portfolio, especially one constrained...
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...International Conference On Applied Economics – ICOAE 2010 299 DOES STOCK MARKET DEVELOPMENT CAUSE ECONOMIC GROWTH? A TIME SERIES ANALYSIS FOR BANGLADESH ECONOMY MD. SHARIF HOSSAIN (PH. D.)1 - KHND. MD. MOSTAFA KAMAL2 Abstract In this paper the principal purpose has been made to investigate the causal relationship between stock market development and economic growth in Bangladesh. To investigate long-run causal linkages between stock market development and economic growth the Engle-Granger causality and ML tests are applied. In this paper another attempt has been made to investigate the non-stationarity in the series of stock market development and economic growth by using modern econometric techniques. The co-integrated tests are applied to know whether this pair of variables shares the same stochastic trend or not. From our analysis it has been found that the stock market development strongly influences the economic growth in Bangladesh economy, but there is no causation from economic growth to stock market development. Thus unidirectional causality has prevailed between stock market development and economic growth in the Bangladesh economy. Also it has been found that all the variables are integrated of order 1, and both the variables stock market development and economic growth share the same stochastic trend in Bangladesh economy. JEL Code: C010 Key Words: Stock Market Development, Causal Relationship, Non-stationarity, Unit Root Test, Co-integrated Tests 1 ...
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...INTRODUCTION Background Driving Simulators are used for entertainment as well as in training of driver's education courses taught in educational institutions and private businesses. They are also used for research purposes in the area of human factors and medical research, to monitor driver behavior, performance, and attention and in the car industry to design and evaluate new vehicles or new advanced driver assistance systems (ADAS). Training Driving simulators are being increasingly used for training drivers all over the world. Research has shown that driving simulators are proven to be excellent practical and effective educational tools to impart safe driving training techniques for all drivers. Uses • • • • • • • User training Training in critical driving conditions Training for impaired users Analysis of the driver behaviours Analysis of driver responses Analysis of the user performances Evaluating user performances in different conditions (handling of controls) Entertainment Apart from training drivers, driving simulators are also used for entertainment purposes like giving video games a more realistic feel. Steering wheels and seats can be purchased and synchronised with game consoles to be used when playing racing games. 1 Research Driving simulators are used at research facilities for many purposes. Some vehicle manufacturers operate driving simulators. Many universities also operate simulators for research. In addition to studying driver training issues...
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...International Journal of Computer Science & Information Technology (IJCSIT) Vol 5, No 1, February 2013 IMPROVING THE MANAGEMENT OF COST AND SCOPE IN SOFTWARE PROJECTS USING AGILE PRACTICES Mariana de Azevedo Santos1, Paulo Henrique de Souza Bermejo2, Marcelo Silva de Oliveira3, Adriano Olímpio Tonelli2, Enio Júnior Seidel4 1 2 3 Mitah Technologies, Lavras, Minas Gerais, Brazil mariana@bsi.ufla.br Department of Computer Science – Universidade Federal de Lavras (UFLA) bermejo@dcc.ufla.br, tonelli@dcc.ufla.br marcelo.oliveira@dex.ufla.br 4 Department of Mathematical Sciences – Universidade Federal de Lavras (UFLA) Universidade Federal do Pampa (UNIPAMPA) ejrseidel@hotmail.com ABSTRACT While organizations want to develop software products with reduced cost and flexible scope, stories about the applicability of agile practices to improve project development and performance in the software industry are scarce and focused on specific methodologies such as Scrum and XP. Given these facts, this paper aims to investigate, through practitioners' perceptions of value, which agile practices are being used to improve two performance criteria for software projects—cost and scope. Using a multivariate statistical technique known as Exploratory Factor Analysis (EFA), the results suggest that the use of agile practices can be represented in factors which describe different applications in software development process to improve cost and scope. Also, we conclude that some...
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...Value Creation of Spin-offs and Carve-outs Dissertation zur Erlangung der Würde eines Doktors der Staatswissenschaften vorgelegt der Wirtschaftswissenschaftlichen Fakultät der Universität Basel von Roger Rüdisüli von Amden SG Difo-Druck GmbH Bamberg 2005 Genehmigt von der Wirtschaftswissenschaftlichen Fakultät der Universität Basel auf Antrag von Prof. Dr. Heinz Zimmermann und Ass.-Prof. Dr. Wolfgang Drobetz. Basel, den 10. Mai 2005 Der Dekan Prof. Dr. Heinz Zimmermann Acknowledgements V Acknowledgements My dissertation would not have been possible without the support of various people to whom I would like to express my sincere gratitude. Firstly, I would like to thank my academic supervisors Heinz Zimmermann and Wolfgang Drobetz of the University of Basel (Switzerland) for their academic guidance, encouraging support and the very pleasant cooperation. Special thanks goes to Jürg Wicki for his advice in selecting the subject, structuring the dissertation, and choosing its fundamental building blocks. I am also heavily indebted to Neelesh Singhal and his team at McKC in Madras (India) who helped me to find the vast amount of data used in my research. Without their assistance it would have been impossible to obtain the data. I am also grateful to Sabine Keller-Busse and the partners of McKinsey & Company in the Zurich office for making my educational leave possible and for the financial assistance provided. My acknowledgement also goes to Thomas Bollinger...
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...14. Data analysis and interpretation Concepts and techniques for managing, editing, analyzing and interpreting data from epidemiologic studies. Key concepts/expectations This chapter contains a great deal of material and goes beyond what you are expected to learn for this course (i.e., for examination questions). However, statistical issues pervade epidemiologic studies, and you may find some of the material that follows of use as you read the literature. So if you find that you are getting lost and begin to wonder what points you are expected to learn, please refer to the following list of concepts we expect you to know: Need to edit data before serious analysis and to catch errors as soon as possible. Options for data cleaning – range checks, consistency checks – and what these can (and can not) accomplish. What is meant by data coding and why is it carried out. Basic meaning of various terms used to characterize the mathematical attributes of different kinds of variables, i.e., nominal, dichotomous, categorical, ordinal, measurement, count, discrete, interval, ratio, continuous. Be able to recognize examples of different kinds of variables and advantages/disadvantages of treating them in different ways. What is meant by a “derived” variable and different types of derived variables. Objectives of statistical hypothesis tests (“significance” tests), the meaning of the outcomes from such tests, and how to interpret a p-value...
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...Friday, December 13 4:23 PM eschulte account log off PHYS 101 Exams UIUC Instructor Unit 3: Homework / Homework / Homework / Schulte, Elaine Student Homework: Hour Exam 3 Deadline: 100% until Thursday, November 21 at 8:00 AM Problems Print Assignment View Standard Exercise The Mass and The Spring 1 2 3 The Mass and The Spring Standard Exercise The Pendulum Standard Exercise The Hydraulic Lift Standard Exercise Archimedes and the King's Crown Standard Exercise The Garden Hose Standard Exercise The Guitar String A block of mass m = 5 kg is connected to a vertical spring as shown in the diagram. When the mass is at rest, the spring stretches y0 = 5 cm beyond its natural length lspring = 14 cm. Standard Exercise The Intense Speakers 1) For this system, in the vertical configuration, y0 = 5 cm gives the equilibrium position. False True Submit Hide Solution Standard Exercise The Speeding Car Standard Exercise Heating a Metal Strip Solution: This question asks about the effect of gravity on the equilibrium position of a spring. Remember that the effect of a gravitational force is to stretch the spring an amount Δx = mg/k. This stretch in the spring represents an offset in the natural (horizontal) equilibrium position of the spring. While the question is strangely worded, the answer is true, the change in position y0 = 5 cm represents the new equilibrium position. Standard Exercise Compressing...
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...Army Regulation 600–20 Personnel–General Army Command Policy Headquarters Department of the Army Washington, DC 6 November 2014 UNCLASSIFIED SUMMARY of CHANGE AR 600–20 Army Command Policy This administrative revision, dated 6 November 2014-o Updates Equal Opportunity Policy (paras 6-2c(8)(c) and 6-2c(8)(f)). This administrative revision, dated 30 October 2014o Updates summary of change bullet (para 2-8b). o Makes administrative changes (throughout). This rapid action revision, dated 22 October 2014-o Updates purpose (para 1-1). o Updates responsibilities for the ready and resilient campaign (paras 1-4a-d). o Directs readers to the Army Publishing Directorate’s “notes” page on AR 60020 for additional guidance on the Army Sexual Harassment/Assault Response and Prevention Program (para 1-4e(6)). o Clarifies the groups of personnel who must be informed of the Army’s accommodation of religious practices policies (para 1-4f). o Adds the categories “senior field grade officers,” “senior field grade warrant officers,” ”field grade warrant officers,” “company grade warrant officers,” “enlisted noncommissioned officers,” and “junior enlisted Soldiers” (table 1-1). o Adds policy that the senior commander is normally, but not always, the senior general officer at an installation (para 2-5b(4)(a)). o Adds policy for command responsibility for the Total Army Sponsorship Program (paras 2-5b(4)(a)16 and 2-5b(4)(c)8)...
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...Freie wissenschaftliche Arbeit im Studiengang Betriebswirtschaftslehre zur Erlangung des akademischen Grades „Bachelor of Science“ Employee Well-Being: Relationships between Work Engagement, Work Craving and Burnout Gutachter Prof. Dr. Myriam Bechtoldt Lehrstuhl für Organizational Behavior Frankfurt School of Finance & Management Michael Fürst Compensation Management DZ BANK AG Matrikelnummer: 4783488 Frieder Saalmann ABSTRACT I Different concepts of employee well-being (Work Engagement, Burnout, Work Craving and Work Satisfaction) were explored and hyptheses are aiming at (1) their relationships among themselves with focus on the new concept Work Craving as well as on (2) their relationships with motivational attributes of tasks. All concepts were measured with existing, validated multi-dimensional questionnaires. Data (N=190) for the cross-sectional study was collected online; 47% of all participants are willing to take part in a follow-up survey. To find answers correlations were calculated and four multiple regression analyses were assessed. Results revealed that the concept Work Craving seems to retain similar patterns of relationships with other concepts of well-being like prior workaholism research and that the concept of Work Engagement, Burnout, and Work Satisfaction are influenced by the work attributes of autonomy of decision making and feedback from the job. Keywords: Work Craving, Workaholism, Work Engagement, Burnout, Work Satisfaction...
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...Research Methodologies in Supply Chain Management Herbert Kotzab ´ Stefan Seuring Martin Mçller ´ Gerald Reiner (Editors) Research Methodologies in Supply Chain Management In Collaboration with Magnus Westhaus With 71 Figures and 67 Tables Physica-Verlag A Springer Company Professor Dr. Herbert Kotzab Copenhagen Business School Department of Operations Management SCM-Group Solbjerg Plads 3 2000 Frederiksberg Denmark hk.om@cbs.dk PD Dr. Stefan Seuring PD Dr. Martin Mçller Supply Chain Management Center Institute of Business Administration Faculty of Business, Economics and Law Uhlhornsweg 26111 Oldenburg Germany stefan.seuring@uni-oldenburg.de martin.mueller@uni-oldenburg.de Dr. Gerald Reiner Vienna University of Economics and Business Administration Department of Production Management Nordbergstraûe 15 1090 Vienna Austria gerald.reiner@wu-wien.ac.at Cataloging-in-Publication Data Library of Congress Control Number: 2005924508 ISBN 3-7908-1583-7 Physica-Verlag Heidelberg New York This work is subject to copyright. All rights are reserved, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilm or in any other way, and storage in data banks. Duplication of this publication or parts thereof is permitted only under the provisions of the German Copyright Law of September 9, 1965, in its current version, and permission for use must...
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